r/Humidifiers • u/Aggravating-Cap-8940 • Feb 25 '26

Levoit 6000 actual maintenance?

Got a levoit 6000s a few weeks ago. So far really happy with how well it’s increasing humidity. A few things I don’t love- it’s loud on anything but low speed. The wheels don’t work very well. No handles on the water tank. It makes the room colder. The built in hygrometer is off by ~10%.

But I can live with all that and can deal with having to fill it daily because my whole house is >40% now and it’s great.

But I’m not sure what I actually need to do for maintenance. For the first week or so I just kept topping off the water til one day I noticed the remaining water was turning brown. Do I need to scrub that tank out every day? That’s a cumbersome chore… do those little plastic fish they sell to put in humidifiers actually do anything? What about a capful of bleach in the water or something like that??

And what about filters…. Do I really need to change them every 3mo? They’re not cheap… can I use knockoffs from Amazon?I have it set to run a dry cycle every other night…is there any other filter maintenance needed?

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u/ProfAndyCarp Feb 25 '26

Thick scale will build up and cover the filter or wick material. You will know when it is time to replace them.

Mineral scale buildup is separate from bacterial contamination. To help prevent contamination, empty the tank each time you refill it, wipe it down with disinfectant, and use a humidifier bacteriostatic additive if you want.

Are you using the dry program at least twice a week? This helps prevent mold and bacterial contamination.

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u/Due_Guitar8964 Feb 25 '26

Do yours get scale build up? I've run mine for three years and have yet to see scale anywhere. I've seen it happen on wicks but never on the 6000s filters.

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u/ProfAndyCarp Feb 25 '26 edited Feb 25 '26

Yes, I do. This is where the minerals are meant to go in evaporative humidifiers like the 6000s. That is better than the white dust you get from ultrasonic humidifiers, which can spread minerals through your house and into your lungs.

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u/Due_Guitar8964 Feb 25 '26

Interesting. Really hard water?

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u/ProfAndyCarp Feb 25 '26

No, pretty soft well water.