
LEVOIT - Classic 300S
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Based on 1 year's data from Feb 25, 2026 How it works
Liked most:
3
2
"all the pieces that touch water come apart and can be cleaned"
"My levoit works well and is easy to clean."
"comparing this to a previous levoit ultrasonic and i like that it’s way more healthy. ... No mold in tricky spots (yet anyway) ... and i feel like i can do an easier job of keeping it clean for my son."
2
0
"My little tanks work great and are very effective ... Mine got up to 50% humidity within a few hours."
"comparing this to a previous levoit ultrasonic and i like that it’s way more healthy. ... No mold in tricky spots (yet anyway) ... and i feel like i can do an easier job of keeping it clean for my son."
1
0
"Alexa control"
1
0
"super quiet"
3
2
"it’s been rock solid"
"We have had the same Levoit for about 4 years now, and run it every day once we start using heat in the house."
"my Levoit is going strong"
Disliked most:
3
3
"Yeah, I have 6L Levoit and it's a pain in the ass to clean. I do it once a week."
"as did our levoit top fill."
"Our Levoit was a headache the whole time between frequent cleaning"
1
4
"No mold in tricky spots (yet anyway)"
"as did our levoit top fill."
"Yeah, I have 6L Levoit and it's a pain in the ass to clean. I do it once a week."
1
2
"half the time it wouldn’t work (red light of death)"
"I’ve had a Levoit Classic 300S humidifier for 3 years and it just stopped working. ... despite cleaning it properly & regularly, it just stopped misting one day. ... I tried all the recommended troubleshooting methods and nothing helped."
Seconding this one. I find it very easy to fill and clean (relatively, there are still some crannies). On high, it can last 12 or so hours and works wonders for me in the winter.
Just a note on Levoit—I’ve had a Levoit Classic 300S humidifier for 3 years and it just stopped working. It was awesome while it worked, but despite cleaning it properly & regularly, it just stopped misting one day. I tried all the recommended troubleshooting methods and nothing helped. Not saying you’ll only get a few years out of a Levoit humidifier, but that ended up being my experience.
been running a levoit classic 300s for about a year now and it's solid. integrates well with ha and the tank size means i'm not constantly refilling it. avoid the xiaomi ones unless you enjoy fighting with connectivity issues every other week.
A whole home humidor is the best investment. We have a Levoit cool mist in addition to whole home. I think it’s the 300S
You should use a cool mist humidifier for baby. We have a levoit and like to a lot. It has an auto shut off feature which is nice. If the air is too dry in the whole house you may want to consider a whole home humidifier
You should use a cool mist humidifier. We have a Levoit that works well. But we use it in addition to our whole house humidifier we recently had installed. The whole home humidifier was an investment but worth it
Thanks for the response, but I just bought the Levoit classic 300S off Amazon. I tried using the spreadsheet that was on the sub, but it was too difficult on the phone. Hopefully this one wil be good enough.
I’ve had my [Levoit Classic 300S](https://www.reddit.com/user/Royeth_Ones/comments/1of6v47/best_humidifiers_ive_actually_found_worth_buying/) for over a year now, 6 L tank, runs for \~60 hours, Alexa control, super quiet, and it’s been rock solid. I refill it weekly, descale monthly.
For small to medium spaces, [Leviot 300s](https://us.vesync.com/product-detail/levoit-classic-300s-smart-humidifier-17) is nice. Very quiet, doesnt cause leakage etc. Havent had any issues with mold. It is ultrasonic, and starts up very quick. i swith between tap water and distilled water. The white residue will be there if you use tap water in the evaporative ones.
Levoit 300s. Own one for a couple years now and works great. Mostly use distilled water, but would occasionally use tap water too. App features are nice too for timed runs etc. No need for cleanup or any residue/mold buildups
My water is classified as "hard". I have a nice humidifier I always use distilled water in. I stumbled on some levoit 300?s a few years ago for next to nothing and decided to just run tap water since I had replacements. I'm always surprised when I take it apart for it's annual cleaning how clean it is.
I have a levoit vesync classic and really like it.
Quiet humidifiers exist, but most of the stuff on shelves is built to be disposable. The fan in cool‑mist units is the main noise source, and warm‑mist units trade that for a heating element humming away. Still quieter, just a different kind of noise. The part that actually matters for holding a steady humidity is the sensor. The cheap built‑in ones drift fast, then the thing short cycles itself to death. An external capacitive sensor does a lot better, but most manufacturers skip it to save a dollar. The tank and body should be thick ABS or polypropylene. The clear plastic stuff cracks once you put it through a few heating cycles. If you go warm mist, look for a stainless steel boil chamber. Aluminum pits, scales up, and turns into a mess after a season or two. Ultrasonic units are fine as long as the ceramic disc is replaceable. The sealed ones die the moment that disc wears out. Mechanical relays last longer than the tiny solid state boards that fry when the heater kicks on a few thousand times. Some of the older Vicks warm mist units got these details right, mostly because they weren’t trying to be “smart”. Levoit’s Classic line isn’t perfect, but at least they don’t fall apart instantly. Skip anything with a touchscreen. Those panels cook themselves from the steam path and the whole thing becomes landfill in a year.
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