Side by Side Comparison of: Signstek vs URPOWER

Came fast, only 1day after i odered!!! It works good as it expected to. Nice night light colour but i dont think i see orange and yellow , just dark and light of these colour : green-blue-purple-red- and white, its okay for me tho.
Abt the air comes out in my opinion : its not strong enough but good for bedroom! If we looking for stronger n bigger capacity then we should go ahead for Honeywell products, i saw some version it could hold like 3.4Gallon of water, good for living room and no need to refill many time a day!
I will attach some photos below so it could help u guys to imagine before u guys gonna buy !

I bought two and love them! But I agree that the oil and water mixed then draining into the bottom area seems crazy because oil floats. I do put several drops of oil in with the water but once back on the base and ready to go, I just lift the top vents and drop essential oil right down the tube into the base below that holds the water. This has made a huge difference! Hopefully this will work for you too!

This diffuser is easy to use. It runs all day long and turns off on it's own when the water is gone and a red light come on to indicate that it is empty. The light is really pretty and muted - not too bright to have on in a bedroom all night. The mist is very adjustable. The only thing I do not care for is the cheap plastic vents on the top, they are hard to move and come off easily. But that feature does help in cleaning it. All in all a very good purchase.

I've tried several & I'm happy with most of them, but this is hands down my favorite! I LOVE that it can run for so long... also, it's not a huge thing for the amount of water it holds! Love that it can go FULL BLAST & really fill a room quickly or just a tiny bit. I have a very large room with vaulted ceilings open to the second floor & it seems to fill the whole room! You can smell the essential oils from the cat walk upstairs!

I also LOVE that I can run it through a lamp timer (like when you go on vacation) so I can be on & off as I choose... Because it has that red on/off switch I can put on 30 mins & off an hour then off all night when we're asleep! I fill it up & just let do it's thing, even if we aren't in the room! With the timer it will run much longer on the low setting... I put 10 drops of OnGuard & it's protecting everyone that goes past that room all day!

Oh, also love that I can spin the top spouts so it points in two different directions or same way... way cool feature!

Happy camper & the price is sooooo right for how great it is!!!

Ive had this diffuser for about a week and I LOVE it!! It lasts so much longer than my other diffusers! It has an option to allow you to control the mist output and on low it will litterally last 20 hours! On high it will last around 8 hours. It also has 2 output spouts which is great, if you have a large open floor plan, you can diffuse air into 2 different room! So far, I have nothing but good to say about this diffuser! I put a little more oil in this one, about 6-8 drops since its bigger, and my house smells wonderful! It also has an option to use the diffuser without the beautiful color changing lights, but I perfer the lights. Highly recommended!

I've wanted to buy an essential oil diffuser ever since seeing it at my dentist's office surrounded by essential oil reading material (no they don't sell doterra) ;) Such a small device, but adds so much relaxation to the room it inhabits. I decided on the Urpower model after reading Sweethome.com's review.I've had it for a few days now and love what it's added to my home office. I believe there are about 9 colored lights to choose from or no lights if that is your preference. So far I've enjoyed an anxiety blend, a grapefruit, and a lavender in this diffuser. It has a very quiet and soothing sound and is easy to open and set up.You can set it to run continuously ~about 3 hours or intermittently at 30 second intervals ~about 6 hours.

 URPOWER Essential Oil Diffuser 120ml Aromatherapy Diffuser Portable Ultrasonic Aroma Humidifier with 7 Color Changing LED Lamps, Mist Mode Adjustment and Waterless Auto Shut-off FunctionI absolutely love this Essential Oil Diffuser from Urpower! It is small, but sure does work well and is so easy to use! All you do is remove the cover, add water and your favorite essential oil, and enjoy. It will run three hours on the constant mode, but if you want it to last longer, just switch to intermediate mode and it will operate 30 seconds on and 30 seconds off. It will run for about six hours in this mode.I use this diffuser in my classroom. I teach high school English, and my students love my use of lavender and peppermint. They also love the lights. You can choose a light and keep it that color, or you can allow it to cycle through all seven colors. I highly recommend this diffuser. It fits in a small space and leaves the whole room smelling great!

I love this diffuser compared to 4 others I've used in the past that family and friends have. Easy to use, has color changing modes if you like that feature, and has intermittent or constant flow of mist. This one does not require near as much cleaning as other diffusers. One I have seems to accumulate moldy residue after about a week and I have to scrub it clean before using again. This one takes a little swipe once is a while and it's like new. I LOVE IT. I have one at home and giving one as a gift.

I love this oil diffuser. It is very easy to set up and the amount of scent it provides with just a few drops of oil is perfect. It has two different settings - one keeps the diffuser going until the water and oil are gone, and the other switches it off and on every 30 seconds or so. It comes with a measuring cup, which is nice but unnecessary. The water line is clearly marked inside the unit. You have the option of turning the light on - the light will change colors gradually or you can set it on whatever color you want. I have an 8 year old niece who thinks this is awesome. I've been using it for a few weeks now and it's very easy to clean and switch the scents out. I'm considering buying another one for my house.

This diffuser is awesome! I live in a one bedroom apartment, and it reaches throughout my whole house. I love the light on it and all the color changes:) I also really like the interval setting because it doesn't overwhelm me with the scents, which I was worried about because my sense of smell since becoming pregnant is insane. The amount of water that it holds will last up to about eight hours of use with the interval setting, and I love that it turns itself off when it gets low, because I can be scatter brained and forget to refill it occasionally.It makes a very small amount of not annoying noise when it lets out the steam, which is great because I was worried about it being too loud.I've had it for a couple of months and haven't had any problems with it, and would definitely recommend this product to someone who's new to aromatherapy like I am:)

I love my new diffuser! Ive tried a few different ones in the past, that did not produce enough "steam" therefor I feel it did not really help or do much.Ive been sick with bronchitis, coughing NONstop for 2 weeks. Nothing has helped my cough, not even cough medicine(tried several different brands)Thats what triggered me to buy this diffuser along with Eucalyptus essential oil.I put my eucalyptus oil in this diffuser, and was shocked at how much mist it produced..More then really expensive diffusers! The smell was nice and strong(my personal liking) and this actually helped calm my cough! As soon as I left the room with my diffuser in it, i started coughing again.There are SO many different oils you can put in here, they have essential oils for every symptom! I really love this thing..I have it on my desk and turned on everytime I use my PC..and when I go to sleep, its right next to my bed :)Also I LOVE how it changes colors. So soothing to the eyes.. Its like a night light. Love it and couldnt be happier with this product!

It just dawned on me that this thing plugs right into the wall, with the cord going all the way up to the unit, and it's full of water. I think I'd rather have an item that uses a power supply in this case, so the mains power isn't right next to water. Also, the power knob won't turn off anymore. It's really rough when you turn it down to the point where it would click off, and it doesn't want to go.

The whole unit needs to be cleaned every few days. I wish the cord unplugged from it to make this easier.

The blue light indicating it's plugged in/running is annoying. You can turn the tank light off, but not that power light. At night, it's excessively bright.I wish there was a way to turn it off. You can't even put tape over it, because the thing is translucent.

Other than that, it's really still working fine after 4 months of use almost every night. It puts out a good amount of vapor. The price wasn't bad either, for such a large tank.

So yeah it has some flaws, but at this price point, it's hard to find something of this capacity, so I'm happy I did.

This humidifier lasts the whole night. It is small enough that cleaning it is not a huge hassle. I use 3 or 4 drops of essential oil in the water every other night or so. The alternating colors through the cut-out designs are nice and soft versus bright, but bright enough to be a really good night light. However, the effect is blown by the incredibly bright light at the turn on knob. It is so bright I have to turn that side away from my bed. The knob light alone could light the whole room. The brightness of the knob light is totally not needed. There is only a small dimple on the front of the knob to know where you have the dispensing speed set. I used a magic marker and drew from the dimple up over the edge so I could see and adjust it quickly. Cleaning is relatively easy. Every few days - a week or less - I take both sections to the bathroom sink and pour the small amount of water left in the bottom out, rinse, scrub it with a the small tip end of a baby bottle brush, refill to top with water and add some bleach to soak several hours - usually all day until I return to go to bed. I drop the stopper in to be soaked also. For the top, I turn it upside down and add some water and use the bigger end of the baby bottle brush to brush the inside as best I can, then rinse, then refill water close to the bottom (which is now on the top side), add some bleach, and leave it balanced in my sink to soak. The spouts at the top are removable - both pieces - for individual cleaning. After soaking, I double rinse all sections and refill the top, close with the stopper, and start use again. I read somewhere - I don't remember if it was the brochure that came with the unit or the description on the Amazon ad - that the upper parts come apart for washing. That is somewhat deceiving. The upper spouts come off and divide into two separate pieces for cleaning, and the upper and lower sections separate, but the only way to clean inside the larger upper part is to use a bottle brush through the one inch filling hole and then soak in bleach or vinegar. I am only giving 4 stars because of the full/empty indicator light being so unnecessarily bright and because the upper section does not open to be sure it is clean. Otherwise, I like it better than any of the many I have had over the years. After trying it a few days, I liked it enough to order a second unit - upstairs and downstairs. Hopefully the manufacturers will eventually work out the glitches.

Thrilled at the capacity of this Essential Oil Diffuser, but aesthetics leave something to be desired. I knew that going in, so can't take a star off for that. The weird way that it gets filled and the difficulty in clean-up is where the star gets taken away. I read the reviews where people were saying that it got filled backward, or words to that effect, but it wasn't until I worked with it that I realized what they meant. Imagine a water cooler at work, where the large water bottle filled with water has to be put onto the relatively small base in order for water to come out -- have the visual? Good, because that's how this Diffuser works. The upper part is removed from the base, gets turned upside down, has the screw-on plug removed, then it's filled with water to the fill line. Essential Oil(s) of choice are added, the plug is returned, then you have to flip the water-filled top over onto the base -- the trick being, it can only fit in ca certain way.And in case you were wondering, if you manage to put it on in *just* the wrong way, the water will spill out all over the base and whatever surface you had the base on. In spite of the potential disaster it poses, this Diffuser unit puts out more vapor and for the longest period of time. Better still, you can choose whether or not you want the colors to light up and change, or if you are more interested in its other qualities.

I like this diffuser. I do. But it does have some design flaws I don't care for...

Let's start with the pros:
- This baby can pump out the mist!!! I mainly use my diffusers as a safe alternative to toxic, household fragrances. I'm a scent junkie and have been trying desperately to find a safe alternative to harmful, home fragrances for years now. I've had several diffusers, but none could really satisfy my desire for a strong, lovely scent carried throughout the open floor plan & high ceilings of the lower level of my home. Until I got this thing! This is PERFECT for large space. However, if you need it for a smaller space it would work as well, because you can adjust the volume of mist coming out. It would just run for a really long time. Which is a bonus in my opinion!

- This thing puts out enough mist that it could easily double as a humidifier when needed. Add some eucalyptus & peppermint oil to the tank during a cold & you'll sleep much more soundly!

The cons:
- This is designed like a humidifier. The top is a large tank that you fill then FLIP onto the base which has a small reservoir of water. I don't like this for 2 reasons. 1.) I always end up dripping water everywhere in the flipping process. It's a mess. 2.) Because of the small reservoir in the bottom, if you don't run it for a day or so, and don't clean out the bottom it gets a kind of mildewy smell for the first 5-10 minutes you turn it on. This usually isn't a problem for me, because I run it CONSTANTLY. But I would still prefer it to not have the reservoir, because it means when I switch my scent some of my old oils are still in there. Which leads me to my next problem...
- Unlike other diffusers I've owned the power cord doesn't unplug from the base. This is an issue for me since the only plug available is behind my couch. So I have to climb over my couch to get to the plugin in order to clean out the reservoir, which is why I don't do it often. :/ This may not be an issue for you if you have an easily accessible outlet or you don't run it at least 2 cycles per day with different scents. For me, it's a huge pain in the rear.
- Like other reviewers have noted, there is a rubber ring that has a tendency to pop off. Again this could be fixed if it wasn't designed like a humidifier. This hasn't been a huge problem for me though, since I have it running constantly. The only time I've had it come off was when I cleaned it out one day & left it laying out to dry rather than immediately refilling it and putting it back on the base. However, I was able to get the ring back on & have used it ever since with no problems. I probably just won't risk it anymore & just keep immediately refilling.

Overall, though, I'd probably buy this again or recommend to a friend with a large space. If it was just for a smaller space, though, I'd probably risk trying something else. The whole flipping it over, making a mess & being unable to easily clean the reservoir have just been huge nuisances for me.

Received this product in a very short period of time. Had a small issue after two weeks with a small seal and I contacted the seller and they were simply astounding in rectifying the problem. The seller is 5 stars, no question. This diffuser lasts for a full 8 hours do to its large capacity. I like the ability to turn the LED lights on and off. The unit puts out a good amount of vapor as well. It's easy to re-fill and get going.

I wish I hadn't had the seal concern, but again, I was just pleased as heck with the sellers service!

I bought this in hopes that it would work as a small bedside humidifier as well as an oil diffuser. It does not really add any moisture to the air, but the diffusing is pretty great. Just a few drops of oil and my whole apartment smells good. I have a fairly stinky dog, so this is an accomplishment. This product is small enough to fit on a side table unnoticed. Could be used as a night light, but thankfully you can switch off the light too. Pretty quiet, but there is a soft noise if you listen closely.

I purchased this as a gift; I own a larger version of the URPOWER branded diffuser that I like and have used for over a year. This one has a much smaller water reservoir than the one I own. The light switch was weird, it didn't behave as expected on this unit, eventually it did come on and cycle through the colors with a touch. Output is good considering its small size. I miss the timer that the larger unit has on it though. It's good for the money.

Although the price is nice it was functionality where I had an issue. The oil makes the lid stick so you can't open it to put water or oil in it, making it useless. If you can't remove the top to fill it with water and oil then it is useless.UPDATE: WELL...the seller contacted me and wanted to make sure I received one that worked! So they sent me another unit and it is working nicely. It is the customer service that makes this overall buying experience THE BEST!

I ordered this product from 'COCO-VISION - Amazon Marketplace' about 2 weeks ago. I wanted to use it for a bit before reviewing it. I would use this seller again- prompt service, good packaging with the mailing and promptly responsive to inquiries. They batch your order, if buying several items URPOWER Essential Oil Diffuser Aromatherapy Diffuser Portable Ultrasonic Aroma Humidifier with 7 Color Changing LED Lamps, Mist Mode Adjustment and Waterless Auto Shut-off Functionfrom them. So- 5 *'s for COCO-VISION!The product- this diffuser is the first I've owned so I have no comparison. It has positive and negative features. The positive features are that is has a sleek design, is small enough to put on a bedside table and generates a powerful amount of steam for such a small item. In a regular sized bedroom with normal height ceilings, the scent of the oils is very prevalent. In a large room with high ceilings, I don't think it would have the effect one wants as the space would be too large to diffuse the oils effectively. It holds about 100cc of water- on intermittent function it can last for ~ 8 hours. It plugs into an electrical outlet - which is good that one doesn't have to be concerned about battery life and re-charging, but limits its portability. It does not have a timer, so the amount of water one puts in it determines when it will shut off (it automatically shuts off when empty) unless one manually turns it off. The lights are fun and are optional. The one major drawback I found with this item is that getting the top off is not so easy, there is nothing to grab and the sleekness of it makes it difficult to get a grip on it, if there is water left in it, chances are that there will be a spill. I have two of these, am 97% satisfied with the item,especially for the price.

Both my 1 year old and I are are enthralled with the rbight colors and all the glowing options. It comes with a cool little cup which we immediately lost because its kind of pointless. I just fill it with the water bottle that i always bring to bed. ANyways, I detracted a star... and a half (imaginary half) because sometimes its f-lipping difficult to open. Like, i will want to get it open and it will just be sealed shut. So, yeah, then when it does come apart this weird, seemingly pointless plastic piece falls out of the top of the inside of the dome and i have to stick my hand up in the wet misty area to reconnect it..... which is a pain in the you know what because then my hand smells like whatever essential oil i was diffusing..... which is really not ok when im about to sleep or eat.... other than that it does its job ok... oh word to the wise make sure the lid is on before you turn it on, while beautiful to behold it does sputter quite messily if turned on while open....anywhoooo thats my two cents. happy diffusing.... im still using the product.... albeit a tad frustratedly... :)

This works well enough for what we got it for. Just wish it lasted longer between fills. We don't use it for the oil infuser, just to add some humity to the room. It's quiet. It's nice that it shuts off automatically when the water tank empties, I just wish it was easier to see how much water is inside the tank. The only way to see the water level is by taking off the cover, which you have to sort of squeeze and twist off. It lights up with another button and goes through different "soft color" sequences. It's good enough for what we needed it for.

I like this Signstek 1500ML 1.5L Ultrasonic Air Humidifier LED Color Changing Aroma Oil Diffuser, but I don't love it, that's why I can only give it 4 stars. While it holds a lot of water and can run for a very long time, it is not the most user friendly diffuser I've ever owned. To use this diffuser, you have to remove the top piece from the bottom piece, then turn the top piece upside down and fill it with water and oil. To reassemble the diffuser, you have to turn the bottom piece upside down, place it on the top piece (which is also upside down), secure the two pieces together, then turn the whole unit back right side up. Thankfully once full, the diffuser will operate for several hours. I like the ability to adjust the amount of mist coming out, which lengthens the operating time. The light changing function is also a nice added feature. The colors are soft and soothing and transition nicely from one to another. The dragonfly design is fun and enhances the appearance of the diffuser. I wish the Signstek 1500ML 1.5L Ultrasonic Air Humidifier LED Color Changing Aroma Oil Diffuser was easier to clean, but unfortunately that is another reason I can't give it 5 stars. All in all it's a good product, but with a few improvements, it could be a great product.

**UPDATE** I am revising my review, because this diffuser is now leaking. I got 7 months of use out of it and now I have to toss it out. Keep that in mind when purchasing.

I was so excited for this humidifier to come as it was highly suggested by a friend. I am sorry to say the excitement quickly faded. It has some pros, it holds a lot of water and will stay on for a long time. The designs in the sides are really nice and relaxing when you have the light show on. Also, being able to produce steam from two vents that can be moved it very nice.

Now for the cons. The instructions provided are limited. I found that I had to read through the questions section on Amazon to actually figure out how to get the thing to work properly. It is also difficult to fill. The entrance to the water tank is on the bottom so to fill it you have to pull the tank out of the unit, flip it over and add water. The tricky part is then when you want to add your essential oil. It goes into the same entrance as the water. Because of the steam vents on the top, the tank is not able to be placed on a surface while upside down. So as you are holding it you have to get the oil in. It become more difficult if you want to add more than one oil as you have to keep holding the tank while switching oils. Also, the instructions call for three drops of oil. With that much water there is no way that 3 drops are going to work. I added 10 drops each of three scents and still could barely smell it. The next con is the water that is left in the base of the unit. It is quite a bit and it gets kind of nasty. Make sure you are cleaning it often. And my final con, and this was my biggest issue, is the lights. There is a switch in the back to turn off the light show. However even with those lights off, the power light still produces a very bright blue light that lights up the entire unit. I had to turn it off as it was too bright to sleep with and one of my main uses for this humidifier was to run it while I was sleeping. I have moved my smaller unit back into my bedroom and will keep this one for the living room.

All in all, this is just ok. I will still use it but not the ways I was planning to. I am disappointed and would not but it again.

I really like this humidifier, so much that this was my second purchase. The reason I got the second one was because as I was refilling the tank, the decorative cover slipped off and the full tank fell, cracking the plastic and making it unusable. So, I bought the second one, knowing to be very very careful while filling it. And the same thing just happened again! I filled the tank, screwed in the cap, and, while still holding the full tank over the sink, was carefully turning it upright, and the full tank slide right out, hitting the sink, and cracking in the same area, around the opening where you fill it. I am so disappointed. I have small, arthritic hands, and have tried taking the decorative cover off before filling, but ironically, it is difficult to remove. I still like it, and am not going to rate it poorly, but thought it might save someone else from the same problem.

For Aroma therapy this is a big ZERO . The base has a very small area for water & has a very large water tank that sits on the base unit. The problem is when you put the essential oils in the tank as directed, the oils float on the surface of the water and don't make it in to the base unit until the tank is empty. Therefore you have to put oils in the base before you put the water tank on it.
Other diffusers are designed to have the base act as the water tank letting the essential oils do their work.
On the other hand this makes for a Great cold air humidifier, that is why I gave it 3 stars.

I bought this more as a diffuser than a humidifier. I loved the design itself and thought it was really cool that you could remove the outer cover and choose from 4 different side designs. When its running it is quiet and puts out a good deal of mist. The unit holds a good deal of water and that is where the issue came into play for me using it as a diffuser. You have to put in a ton of drops to equal the amount of water it holds. Because of that I quit using it as a diffuser. This would be a good unit for a small to medium room to use as a humidifier. It could also be well used as a night light for children.

I love everything about this diffuser except the fact that it does not always turn on right away, sometimes it takes quite a few button pushes. It could be that I am not using it correctly but I'm thinking it's pretty self-explanatory.. fill water to the line then add a few drops of essential oil..But once it's on, it works great! and I love the colors

Looks nice works well, but I do not like the fact that it has to be twisted apart to fill. Because of the possible spills from the twist off top, I would not recommend putting this on a wooden surface. I would not purchase it again just because of twist off top. Otherwise it works well and as stated.

The oils smell great and I like the way it turns itself of when the water is gone. However, it takes like seven drops to get a good scent and the mister doesn't shoot far enough into the room.

I love oil diffusers. I use them all the time. I have only opened 3 of them and could only use 2 out of the 3 because 1 leaks the water out all over my countertop. 1 is for a gift and I guess will have to hope that it doesn't leak as well. I might hook it up and try it beforehand, so I am not embarrassed by giving defective gift. The other 2 are working great and I still love them. It's a very busy time for me and just don't have the time or funding to send the leaking one back, so I just guess I have to eat the cost. Of course will pass this on to my Amazon. Appreciate the fast delivery. Thank you!

I bought this diffuser just under a month ago. I used it daily and it seemed to work okay for bedside use. However, I went to use it last night and found it no longer works properly. The only button that works is the light button. That button turns on the diffuser for about three seconds and then it shuts back off. I can't seem to get it working again. I am very disappointed. It did work good for a little bit. I guess it's not good if you're looking for a daily, long-term use diffuser.Edit:I was able to getting it working again by cleaning it with lemon juice and not using it for a few days. Still a good diffuser, just wish it was consistent in working.

It's ok. Cheap plastic. It's pretty noisy and I agree with the reviews that the beep is obnoxious. My dogs are terrified of it. Also the mist is speed is pretty strong and if I keep it by my glass of water my water ends up tasting like oil. I won't buy this unit again or recommend it. I'd spend a little more for a nicer unit. I bought one for my daughter that was nicer and more attractive than this.

Both the fill gasket and the water out plug gasket have swelled so much. It's very hard to get the fill cap back on because I need to squish the gasket into the cap recess.

The water out seal (spring-loaded plunger) swelled and now leaks. This isn't a huge deal because if you can flip the reservoir over and put it in place fast enough, you'll probably only leak a few teaspoons of water.

Once I get the gasket in place, the unit works pretty well. As someone else pointed out, the basin get gross from the oils.

Got this item maybe 3 weeks back. This was my hubby and mine's first humidifier and I will say that WOW! This this thing gives off an ample amount of vapor! Felt better waking up (we both have allergies) and my skin felt decent (usually it's incredibly dry!)

So why 2 stars and not 5?
1.) The LED Light is NOT fit to be a night light, by any means! If we didn't cover it with a blacked out piece of tape it would keep us awake but even then we still had to cover the front end with a hardcover book! Despite even those efforts the light was so bright it illuminated the entire mechanism and shone around the room.. not good for trying to go to sleep.

2.) After 2 weeks of using it on and off, the "whisper quiet" motor became a whirring and then the whirring progressed into a by a high pitched electric ringing noise on top of it. Whatever frequency that ringing noise is kept us awake so we just shut it off and don't use it anymore.

This product has some serious promise...
Unfortunately it also has some serious problems...
Some people might be able to accept that, but because
this our bedroom, this is not something we want to keep. Returning it as soon as possible.

I initially really liked this unit. The mist flow control and changing light option was such a nice way to destress. I was disappointed that I had not noticed that essential oils should be water soluble but was okay to live it. I bought this 5 months ago and used it quite a bit at first, due to a tonsillectomy. After recovering I didn't use it as often. I stored it until cold and flu season hit our home and pulled it out to run an antiviral essential oil recipe. When I filled the tank and went to place it back on the base it poured water and oils all over the place! Fortunately, I was still in the kitchen and only had tile and counter tops to dry off, but had wasted my oils and ruined one of my favorite kitchen rugs. It appears that the seal around the cap has gone bad. I may try to see if the cap can be replaced. In the meantime, the unit is completely unusable.

**UPDATE**
It is now making a LOUD humming noise everytime I turn it on. The only thing I can do to make the sound go away temporarily is empty the water from the base, turn the base upside down and shake it 5-10 times. I am not sure why that helps it but it is really annoying. I would NOT buy this again and am looking for a nicer one to replace it.
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I bought this thinking that it would be great for running longer than 3 hours ( I have a smaller one that I LOVE but it only runs for 3 hours). This does diffuse the essential oils very well and it runs for a long time, so I thought it would be great! My biggest complaint is that you can't clean it out when it runs out of water and because it is plastic it absorbs some of the oils so when you run lets say thieves through it and then you want to run orange or peppermint it smells a bit weird for the first little while. Also, when you let it run for more than an hour I find that the area around it on the counter is wet because it tends to "spit" water. It spits the water no matter what level I have it running at. I am going to keep it because it runs longer and it is on a countertop that if it gets wet it is ok, but honestly I wouldn't buy it again. The one I LOVE is smaller (100mL). You can clean it, it diffuses the oils well and it doesn't spit water everywhere. I will be buying more of the smaller ones.

Color continuously changes, you cannot set it on one color. Though the color changing doesn't bother my sleep. There is a plastic o-ring around the resevoir knob and has come off several times. Now I can't find it and the knob won't tighten well. Contacted the company about another and they never responded.

Nov 30, 2014 - Have had this product about 2 months. Wish I'd had more information on it - I wouldn't have bought it. You can't change the pictures around. They are stuck on and you have to turn the diffuser around. Also the plastic retains the smell of oils used and oils get set in an area inside, on the bottom and you can't clean them all out. I empty mine after every use and clean it out. It has a soured smell
combined with the different oils I have used. Rosemary Peppermint is not something to love! If it wasn't too late, I would return the product!!!

July 17, 2015 Have had this 9 months. Will be replacing it. Know what to look for this time! You cannot clean the inside of this. Oil gets into places you cannot clean out. Gets moldy easily and you cannot clean it well. Have to bleach it and I don't like putting bleach in it because the plastic retains all smells! Now the plastic has cracked. It's unusable. WASTE OF MONEY. Do not buy this product. Do your research on your item well.

I like everything about this product, except that I can't smell it! I have a medium sized bedroom, maybe even on the smaller size, and I put it right next to my bed and I still barely get a whiff of it. I will test it in the bathroom - when they said this was for a small room I didn't imagine my bedroom would be too big. Disappointed.

I bought this back in March and it was amazing .After 6 months of using it only 3 days a week ( only for work) it has stopped working. Not sure if this is the life expectancy but it is defiantly done. I have cleaned it and no function..... bummer I had just bought a pack of their essential oils :(

well wasn't satisfied with how small this is I guess it's ok if it's on ur nightstand n ur two feet away from it.. customer service is really gd I can say that much.. they sent me 300 ml one cuz it's a little bigger BUT it doesn't work, so I give up! Kinda messy when trying to put lid back on when water is in it.. here's a pic of 300ml.. water leaked everywhere! Definitely not worth the price! I ordered a nice one for 28$ n it's big a lot more mist comes out.. its the "best cool mist ultrasonic steam vaporizer"!

I do not like that you have to unplug it to clean it. Most other diffusers have a cable that attaches into the diffuser, so that you can easily remove it from the nightstand or table. For me, I am required to reach behind my bed and unplug this every time I want to clean it. Also, the top piece that "screws" into place has gotten stuck more than once, so I am often trying to work the top off like a jar of pickles that wont budge. Not a fan. I shouldn't put the money towards a Young Living brand one.

I have really enjoyed my diffuser. I do have a little trouble getting it opened to add distilled water and my oils since I have trouble with my hands. Others would not have trouble opening it up.I am doing a follow up to this review. I do have trouble with closing the top down. I am getting it screwed down and it leaks every time I use it. I don't understand why it's doing it. I will not be purchasing another one. I think it's defective. Too bad it's too late to return it.

I bought 2 of these six months ago to use with ridiculously expensive top of the line essential oils--hoping to offset the cost. The diffuser worked for 3 months. I followed all instructions for cleaning. They were really great for the first couple months! Diffuser worked well for 4-5 hours, turns off when water runs out. At month 3, both diffusers took 4-5 DAYS to diffuse 25 mL of water. Currently using them as night-lights.

After I received this product, I began using it almost every day. It was a joy to behold and wondrous on the olfactory nerves. It was everything its product description said it was -- until after about six months, when it decided to stop working. I took it apart and cleaned it (I did not disassemble it), always used filtered or bottled water in it (our Florida well water is too full of who knows what to use it straight from the tap!), and only used high quality lavender essential oils in it while it worked. I had read several reviewers who stated that their units had ceased to work after a while, but I thought to myself, oh, those or just malcontents who love to post negative reviews online. I should have listened. The money I spent on it was wasted. No doubt the sellers know that, since like most people, after it was working fine for the first few weeks, I discarded the box it came in as well as my receipt. I'm sure I could find some way to prove via Amazon records when I purchased it and how, but the effort of going to the mat to do that just seems not worth the trouble. All I can say now is CAVEAT EMPTOR! Read the product reviews, and not just the glowing 5-star ones. Heed the advice of those who say this product does not have a long life span. Waste your money elsewhere, if you insist on getting something like this. Just don't buy this one unless money is no problem for you and you like to spend it on things that work well for a short time, then stop and never work again, EVER!

This broke after 2 weeks of use. Suddenly when I would turn the switch nothing would happen. I'm returning it and hoping to get one that is more reliable

Based on several good reviews and being totally new to essential oil diffusers, this sounded like a reasonably priced diffuser with lots of nice features as a starter diffuser. Worked great for a few days. I loved it. The gauge that was to control the amount of mist never did seem to work. It always ran at highest setting no matter where the dial was. Then within a week the ring around the place where you put water changed position or size...and then the spring cap on the water tank began to leak. Within 2 weeks it was only diffusing a sufficient amount of mist for only an hour or two. By a month, little to no mist and it was essentially dead! Don't waste your money. Like someone else said, I'd love to know of a good diffuser that actually keeps working more than a month or two. Seems to be a common problem in many price ranges. I've done a lot of research in the last few weeks.

Loved this when I first got it for the large water rank and generous output. I did not like the lights as I used it in the bedroom and even though I turned them off, the "night" light version could not be turned off and was a bit bright for sleeping. Not being too light sensitive I could tolerate it. I used it every night and each morning I emptied and dried the unit. Last night when I filled it it no longer worked. No steam. And the lights which I never used would not come on either. The unit is DEAD after less than 30 days of use so it's being returned. I will not be buying another model like this as I was two days from being stuck with a $50 piece of junk. In defense of this product, it seems that a short life span is an issue with many of the electric diffusers. If anyone has a model that has a generous reservoir and that they have used for more than a year, I'd love to hear from you. I do want a diffuser but I want one that is durable enough to make its purchase worth the money I spend on it.

8/17/2005 I didn't know I could edit my original review until today. I had added a comment. I am leaving my star rating at 1 only because I know a lot of people read them. This product does deserve a 5 star review, and I do recommend purchasing it because the company stands behind its product, which I have found to be rare these days.

Someone suggested that a lot of people do not read comments and that I should edit my original review so I copied my comment below into the review, and I suggest that people always read comments in reviews:

MY COMMENT: The replacement arrived a few days ago and is working fine, so far. There have been a couple of changes made to the design that are worth mentioning. One is the nightlight. It is been dimmed by the manufacturer. It is now a soft white light that is perfect. To use it you have to switch off the other rotating lights. The other change is either the amount of water it holds or the rate at which full steam disperses it, as it no longer lasts the entire night (8 hours). I could run the previous one on full blast the entire night and it would still be dispensing steam when I awoke. This one is always out of water when I wake up. Not sure how many hours it lasts on full blast now, but I will turn it down a little bit and see if that makes it last all night. UPDATE TO COMMENT: It does last the night on a lower level and is perfect for my needs. Highly recommend this product.

I was very excited about ordering this humidifier based off the reviews. What a piece of crap! This is so cheaply made and it completely stopped working after one day. What a waste.

Junk! I was skeptical about how cheaply made it was when I opened it up. My worries were confirmed when it worked for roughly 3 minutes then gave up. Don't waste your money - I would compare this thing to one of those novelty handheld face fans you could buy with tickets at Chuck-E-Cheese.

Stopped working after a month, attempts to contact company both at website and by email unsuccessful

I purchased this to replace another diffuser that I've had for a long time. This one barely works. The lid is hard to remove or snap into place, and I end up with water spilled everywhere just from trying. It doesn't 'diffuse'- it can be running for hours and the water level is still the same. It didn't cost me a lot of money, but still. What a waste.

It broke sooner than any diffuser I've ever had. It leaked all over when it broke. I didn't drop it or bump it so it would have a crack--can't find a crack. I wouldn't buy this again.

Broke after one use. Waste of money.

Ever since my wife and I started using this diffuser it constantly stops working and we have to unscrew the top and rub our finger across the bottom to get it to work again. My advice don't go with a cheap on spend the money on a nicer diffuser so you can enjoy it rather than keep trying to fix it.