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

This was actually a replacement for my original humidifier that stopped working after I cleaned it. The customer service is top notch. I called to get help to get my oid working and they were unable to get it working. I believe I was just outside of the 1 year warranty but then offered to send a replacement. The new one is up and running. Great model for the money.

My husband's nose has been running since Fall, when the high humidity in our area dropped....of course we didn't know that was the reason for his constant runny nose. My husband's doctor mentioned it at our last visit (since he always had a hanky in his hand) and YAY, his doctor told him that HE had humidifiers in his home to add humidity when we get into our dry dry winters and we should get one.When we got home from my husband's visit to the doctor, I did a little research and chose this system....the "Rolls Royce" of large bedroom humidifiers. I ordered it the same night and a few days later I had it hooked up, had the app installed on my phone and had it filled with water. That thing holds a LOT of water. It is really quiet, we can't tell it is on even when we have the mist coming out on high. I was a little afraid a cool mist would make my husband feel cold, as he always has a space heater on (another reason for low humidity in that big room), but it didn't bother him. We placed it on a large desk just behind his recliner, where he sits most of the time to watch TV.This humidifier was a great value. There were some that only held a Liter or two.........again, this thing holds a LOT of water. We keep it on all day now, and I turn it off late night.........I am filling it about every 36 hours.........it is a large master bedroom.I just checked the app on my phone and the humidity in that (really big) bedroom is at 46%. We have it set for 45% because that seems to keep his sinuses in check....it turns itself off when set on auto, which we do.There is nothing about this thing that I don't love, and I'm the one who has to take care of IT, and the Husband.

Noticeable difference in my bedroom air very soon after first hour of use. I live in the desert and our humidity outside right now is anywhere from 8-17%. After two days of receiving this I am sleeping better and waking up without a bloody nose. I have it on high and replaced the water about every 24 hours. The unit is small enough to sit on a side table but definitely could go on the floor as well.

I’ve had this device for a couple weeks and have a few issues I’d like to point out:The ‘low’ setting produces a relatively loud high-pitched sound that I’m very sensitive to, so I cannot sleep with it on low. Fortunately, I use the auto setting, which rarely drops to low before turning off. The noise seems to come from the ultrasonic diaphragm, not the fan or other components, indicating the device is likely operating as intended. I've seen similar behavior in other ultrasonic humidifiers after trying several models. Ironically, medium/high settings are quieter than low and just produce more mist without that dreadful high-pitch sound.The app should not be necessary for all features. Out of the box, the available settings are low, medium, high, and auto. Auto defaults to 50% relative humidity, which is unreasonable, as no online resource I could find recommends an indoor relative humidity that high. For use in winter the commonly recommended range is 30-40%, and anything higher could encourage mold growth or excessive condensation. The app is needed to adjust the target humidity, which I strongly recommend you do, otherwise, you risk wasting power, water, and creating adverse effects from excess humidity. The device really should have an additional button to adjust target humidity, or repurpose an existing like holding the power level button or something which could be added in firmware.Auto mode also needs improvement. It runs the humidifier full blast until it exceeds your target by 5% and stops, not restarting until humidity falls 5% below the target. When I set my target to reasonable 35%, the room stayed very dry at under 30%, and the humidifier barely ran leaving the room quite uncomfortable. I adjusted to 45%, so it starts at 40% and runs to 50%, which I’ve found is a nice balance where the room mostly hangs closer to 40%. However, auto mode mostly runs on high, producing an excessive amount of vapor. I had to push the humidifier to the edge of my dresser to avoid moisture on the wall. I can only imagine using this on a shorter nightstand next to your bed risks soaking your floor or bed with how much mist this thing can kick out.Additionally, firmware updates are applied when connected to the app, indicating potential fixes for some issues I’ve encountered could be made. The 10% range in auto mode is far too large. I believe a 5% range would be much more ideal. I’d like to be able to set to 40%, it would then run until 42.5% and start again after falling to 37.5%, maintaining a more comfortable and controlled humidity level. Limiting mist power in auto would also help. My previous Winix humidifier allowed you to set the humidity target and limit power level. I would prefer limiting mist to medium to avoid any issues with excessive moisture when on the high setting.I also found a bug. The device allows turning off the display while activating the nightlight, but in the app, if you turn off the display, it reactivates when you turn on the nightlight. This requires manual adjustments on the device itself before bed, which is inconvenient and can be fixed in the app.Despite these issues, I still consider this a very good product. It's visually appealing, unlike most humidifiers which look like an unsightly medical device, and it works well. It puts water in the air, runs quietly (except on low if you're sensitive to high pitch sounds), and its 'smart' features work relatively well.