Quamii Aromatherapy Essential Oil Diffuser - 400ml Ultrasonic Cool Mist Aroma Humidifier with 7 Color Changing LED Lights, Adjustable Mist Mode and Waterless Auto Shut-Off (Dark Bamboo Woodgrain)

I have been using this same diffuser with a different label for a few years and am glad I found the Quamii 400ml unit on Amazon. The size of the diffuser allows me to use it all night while I sleep which is a good thing. I like having the choice to use rotating colors, a single color or no light at all (which is what I do most of the time). Another benefit which is very important to me is this diffuser can use citrus based essential oils... some other brands are not able to do this. All in all, this is a diffuser I am very satisfied with as it has given me no problems and is identical to what I've been using for quite awhile. I gave the scent rating 4 stars but that is a reflection of the essential oils I've been using and not the diffuser... it does a good job of dispersing the mist into our bedroom.It's a good unit and you won't be disappointed if you decide to buy this one.

This is my second essential oil diffuser, and it's so much better than my first one! That one was a small, round, white one (I can't remember the brand or anything), and it worked well, until my kittens knocked it off the table breaking it. This one, however, holds probably twice the amount of water as that one. It comes with its own filling cup, which was nice, though it's more for topping off than filling (unless you're by the sink and fill it at least twice). I love the dark wood look of the plastic, as it's more elegant, and the way the color changes is pretty flawless. It is difficult to hit the button at just the right time to keep a color you like, but it doesn't bother me, as I like leaving it to flow through the different colors. It's really pretty in the dark. It's also difficult to hear and see a difference between high and low running modes, but it was still running this morning on low after leaving it on all night. I received this product at a discount for my honest review, and I'm so glad I got it! I may need more so I don't have to move this one around the house to use.

This is a great little diffuser, pretty quiet and has an auto shut off when the water gets low. I use high quality essence oils (Dōterra) and it makes a difference that I can smell it throughout a 600 sf area of the open plan area of my home. The instructions say to use 3 to 5 drops per 100 ml and it is about a 350 ml unit, I only use 10 drops and this little diffuser disperses the scent very well. The lights are lovely, they can either cycle through all the colors, set to be on only one color of your choosing or shut off entirely. There are no annoying indicator lights either. When the water runs low and the auto shut off kicks in, there are no annoying beeps or sounds. This little unit is easy to set it and forget it with no worries. The only drawback of the unit is that the top can be a little cumbersome to get off to refill, I wish the mfg had put a little finger indentation of some sort at the back of the unit to allow easier lift off. The top doesn't snap on so if a toddler or a cat were to bump it and knock the unit over, I'm sure it would create a mess but you still need to work at it a little bit to find a groove of some sort to lift the top off, that is the only reason I knocked one star off. The on / off button is camouflaged very well, this can be a pro or a con. The button doesn't distract from the simple beauty of the unit but it blends in so well that my husband couldn't see it to figure out how to turn it on (I will give him credit though that the room wasn't brightly lit at the time). I haven't had any problems with dripping, condensation or overheating (the unit doesn't get warm at all). It has a low and high setting to dispense the scent although I couldn't tell that big of a difference between the two. I've run the unit for 5 to 6 hours without any problems, it could probably run longer than that before running out. I run it for a few hours before I leave for work and when I get home, refilling it as necessary. I empty it entirely and wipe it down with a paper towel and Q-tips to get in the grooves. A little vinegar and water does a great job for cleaning. I would definitely buy the unit again and this vendor did a great job getting the unit shipped quickly, I had it in my home within four days of order. I'm thinking of ordering another one for my bedroom.

So far, so good! I just got this going and I love the scent it adds to the room. I'm using it in a room that has 19' ceilings and it about 30' x 15' and I have the mist on 'high.' I can easily smell the oil all over the room! I selected this one because of the reviews, and I thought that people commented (or answered questions) that they could NOT hear this unit running. Well, I can hear it from hear it from across the room. It's not an annoying or loud sound, but I do hear a low shhhhhhhhhh or bbbbbzzzzzzzzzzz noise (it might even be a sort of low, dull fan noise). It might actually be a nice white-noise sound while trying to sleep...may need to try that! I like the look of it...has a dark, wood-grain look, but it's a slick, smooth plastic. I love the option of having the lights cycle through colors (white, red, pink, purple, blue, green); they are really nice and slowly morph from one color to the next. The white power cord is about 6'2" long, so plenty of length for my purposes. Also, there is a nice flow of mist coming from it. The picture next to this review is a bit exaggerated when compared to my unit. But if mine could fill my very large room in a matter of about 5 minutes, it's doing a great job! Highly recommend it!

This is the first time I bought a diffuser. It works as said. I bought 3 of these - 2 for myself and 1 for my daughter. They work at least 12 hours each day. I love the fact that it ionizes the air, shuts off automatically when water level is low, the lights are so cool and nice to look at - and the lights actually indicates the the unit has shut off. These definitely work better than the wax warmers I have been using. It takes the dust smell out of the air. I think it positively influences my sleep - even the dogs sleep better, judging by their increase in relaxation and snoring. ;)