Rated 3.4 out of 5★ by 7reviewers.
Rated 4 out of 5★ by mschiff nice unit This unit puts out a very very fine mist, almost undetectable, which is good. There is no puddling or window condensation. The price was good but as with most units, the filters/wicks are pricey and frequently needed. There is a minor design issue. When you refill the tank you cannot set it down on a flat surface for filling because the the top is convex. So, you have to hold it while filling which can be awkward, but this is not a big issue. I use filtered water from a reverse osmosis system which will hopefully cut down on mineral deposits. It is nicely quiet even on high speed operation. I have had mine for about a month now and I hope that it works just as well 9 months from now.After trying other brands over the last 2 years, this unit outperforms in a grand way. I just purchased an additional unit for another room. 11/29/2011
Rated 4 out of 5★ by AmazingHouseHusband Quiet but does not have great output I like it for the most part, but the one drawback so far that I found was that it does not put out very much moisture. On the plus side that is that much less that I have to fill the tank. I do however like how it's nice and quiet. Overall a good value but rather than being able to cover a 600 sq. ft. room like it states, I would say it's more like a maximum of 400 sq. ft. room primarily due to its low output. 11/30/2012
Rated 5 out of 5★ by honeymom102 Very nice I am very happy with this humidifier. It is very quiet. I breathe much easier now that I have it. 02/02/2012
Rated 4 out of 5★ by bunwal It Works Well So Far I am quite satisfied with the Optimus Cool Mist Humidifier. It provides a acceptable amount of moisture on the low setting and is acceptably quiet. The large tank holds enough water for two to three nights of operation but is a little awkward to fill and clean. I am disappointed that I can not get reasonably priced wicks at my WalMart store and their web site is out of stock. Buying the wicks from Optimus on-line is not an option because they don't have on-line sales and Google doesn't help. 08/19/2013
Rated 1 out of 5★ by bailley1234 returning this item Product came dirty in box with broken knob. Obviously was a returned item relabeled and shipped to me. extremely disappointed. I would never use Walmart online again. 02/03/2014
Rated 3 out of 5★ by Chrisanna27 It will better suit a kid's room... I thought it would work a bit better, but for the price it ok.. 04/20/2012
Rated 3 out of 5★ by Porkpie21 Switch broke on second day of use. Everything worked fine except the on/off switch, which came apart in my hands after the unit was filled. So, I ran it and it did well. Apparently an assembly issue. 02/26/2014