LEVOIT Classic300 Ultrasonic Top Fill Humidifier, Extra Large 6L Tank Last 60-Hour - Super Quiet, Easy to Use and Clean, 360° Rotation Nozzle, Simple Knob Control, Handle, Auto Shut Off, Gray

Update: discovered the leak issue was apparently my mistake. I had moved the humidifier a few inches by picking it up by the water reservoir indented handles. Apparently this was enough to break the pressure seal between the tank and the base. Took the unit apart, checked the float, which was operating fine, and refilled the humidifier. Marked the water level with a crayon and left it in the kitchen sink overnight. Leak had stopped and no water lost. This was operator error on my part. If you have moved your humidifier when water is in the reservoir using the indented handles, there is a risk of leaks developing around the water reservoir and the base. As precaution, I placed a dollar store cake storage pan under the humidifier just in case. Changing my review to five stars. Very happy with the quiet operation, ease of cleaning, affordable replacement filters, and it's ability to raise humidity in our 12' x 15' family room.Purchased four of this model as I trust the brand. Two were sent as gifts, and two are in our home. One began leaking two weeks from purchase. We are adults,no pets, humidifier is on the carpet and stays there. We don't walk through that area. Use soft water only and clean it every few days. Will contact Levoit. We absolutely love the compact shape, easy to clean, basic design. It is quiet and made a great difference in the humidity comfort level. It really does cover the square footage claimed. Other than it leaks, we really like it, but am hesitant to replace the leaking one with the same model. We also bought two Levoit bedroom humidifiers, round 2 liters, and they are fantastic.

Very good works, the best I ever had.

UpdatedLevoit replaced the product at no additional cost. The issues with the original product are not a problem. I will update accordingly if that changes.Suggestion for potential buyers: Immediately test the tank for leaks. It's a good product if you get one that is not faulty.-- Original Review Below --PositivesThe humidifier is easy to use and works well (before the base overflows due to a tank leak from a faulty seal/spring mechanism).Issues- The product is reasonably quiet but there is a whine to it. You may get used it over time but there's definitely an odd pitched sound.Critical Issues- The water tank leaks. I added a cup of water to the tank and let it sit on the counter for 10 minutes. At least a tablespoon of water had leaked out. This explains how the base chamber overflowed over time. I did not notice this for some time as the leak is slow and under normal operation just enough water is consumed.- The customer support form on the Levoit website does not work! I do not wish to track them down via social media but it may be the only alternative.I will adjust my review if/when Levoit responds to this issue.

I've had Air Innovations humidifiers for years and I finally got tired of how horrible they were to clean, and you can't get in a lot of the areas to remove the nasty gunk that built up even after a month, granted I was just adding tap water (and I have good tap water) and would run it 24/7, so I decided to research a totally different one. I bought this based on the reviews as well as what I really wanted. I wanted something large, that was top fill and also decided I would put filtered water in it, so I bought a fairly large zero 20 cup pitcher, as I use them anyway for my drinking water and since the humidifier is top fill I just fill it up every day and only run it at night. I wanted to wait until I've had a month and cleaned it so I could report. This was hands down SO much easier to clean. There was no gunk or crud at all. I would suggest having some sort of bottle brush or vase brush to clean it with to get in all the nooks and crannies, but I am super happy with this humidifier. It really puts out the moisture and I love the simple dial. It's super solid, very quiet and nice looking and like I said easy to clean. I really am glad I purchased this!

I'm fussy about noise & this humidifier is very quiet. It has good humidity output with easy controls. The tank is large. It's all easy to clean. It has clean design. After having the first for several months, I'm buying another. Lo

UPDATE: A year later, December 2024. So my first winter I bought this it worked perfectly without any issues. I dried it and stored it in its original box in my closet, and, took it out this year. Immediately it started leaking at the bottom seam of the tank itself. Not the plug-in electrical part. The tank itself, the part you can carry to fill it, where the white bottom of the tank meets the clear tank, the seam started leaking. I tried snapping it into place and putting caulk around the seam and letting it sit to cure for a few days, before refilling with water. The seam eventually starts leaking again and even breaking the caulk within a few days (this is heavy duty caulk so I don’t understand how this possible. It would appear the weight of 1.5 gallons of water just can’t withstand a seam in that location no matter what sealant you use, so I’m gonna call it a design flaw. I’m sad because I really liked this humidifier the first year I used it.So I usually prefer something warm mist instead of cool mist during the winter, and for some reason I thought this was warm mis. It’s cool mist. Usually I’d worry about mold in cold water, but I’ve been using those little cleaning balls with the beads in them, and that has helped. So far no mold.This helps me so much with breathing when the air gets dry here, and I just turn on the space heater when I turn the humidifier on to keep things warm.It’s quiet, no obnoxious lights, holds a lot of water, stays clean, and produces a lot of mist for a good long while (at least 12 hours it seems like). Definitely happy with this purchase.