The 10 Best Humidifiers
Updated by · How we research
Most people want a humidifier for a bedroom. Ten ultrasonic, evaporative, warm-mist and whole-house units, led by the quiet, top-fill Levoit Classic 300S. When users buy our independently chosen editorial picks, we may earn commissions to help fund the Wiki.
In a 2016 Consumer Reports test of 34 humidifiers, none of the wick models emitted bacteria, and wick units leave no white dust from hard water. A humidifier adds moisture to dry indoor air, which may ease dry skin, scratchy throats and static in heated homes. Most people want one for a bedroom, where quiet running and easy cleaning count most.
Editor's Notes
October 18, 2026, by Ezvid Wiki Admin:
Most people who find this page want a humidifier for the bedroom, so we rebuilt the list around quiet running, top filling and cleaning. The Levoit Classic 300S, DREO HM311, Levoit OasisMist 450S and Crane Drop are new here, along with the Vornado Evap40 and Levoit OasisMist 1000S for bigger rooms and the Vicks V745 for anyone who prefers warm mist. The Honeywell HCM350B is the same model as the white version we listed before, which is no longer available.
The Elechomes UC5501, TTLife 5.5L, Honeywell HEV685W and Venta LW45 are gone because of availability concerns, and we couldn't confirm the TaoTronics TT-AH026 is still sold. Venta still sells its air washers directly, so it moved to the special honors. The Levoit LV600HH gave way to the OasisMist 450S, and the Everlasting Comfort model dropped out for lack of outside evidence.
The type matters more than the brand. Ultrasonic units are nearly silent but spread white dust with hard water; wick models hum and need new filters but leave no dust. Whichever you get, cleaning it every day matters more than which one you buy.
October 21, 2020:
Today the well-rounded Honeywell HCM350W comes on board, as it’s a good choice when it comes to quiet and efficient operation, user-friendly controls, ease of filling, and a tank that’s conveniently safe for the dishwasher. It can cover an area of up to 400 square feet, making it a good choice for placement in a living room or a bedroom -- and it won’t disturb your sleep, since it doesn’t produce any loud beeping sounds or bright lights. To make room for this model, we say goodbye to the TaoTronics TT-AH025, a small humidifier suitable for bedrooms that’s highly similar to the sleek and compact TaoTronics TT-AH026. The newly added Honeywell model joins the larger Honeywell HEV685W on the list, which holds up to three gallons between its two 6-liter tanks. It’s easy to refill, thanks to its handy top-loading design, and incorporates an adjustable humidistat and three speed settings.
For a reliable whole house humidifier, look to the Aprilaire 500, which connects directly to your furnace for efficient coverage of your entire home. It hooks up to a water line, so you won’t need to ever bother refilling it, and it can put out up to 12 gallons per day. Another option that can handle an entire house is the Levoit LV600HH, which offers both cool and warm mist settings and a timer that can be set from one to 12 hours. It’s got a built-in essential oil diffuser and can conveniently be controlled from the couch or your desk with the included remote. For a choice that’s designed to both moisturize and purify the air in your home, check out the Venta LW45 Airwasher, which can cover spaces of up to 800 square feet and is made to remove dust, pollen, pet dander, and other allergens. While some other selections require more frequent cleaning, this one only needs to be cleaned every 10 to 14 days.
November 04, 2019:
In most homes and offices, it is inevitable that a humidifier will be in plain sight at all times. Because of this, we focused on form just as mush as effectiveness when identifying the best models to recommend. That being said, there were times we leaned more heavily one way or another. For example, the Honeywell HEV685W may not be the most attractive model, but if you want a portable option that can cover a lot of square footage without needing to be constantly refilled, it is a great choice. Likewise, the TaoTronics TT-AH026 may not have a high capacity and is best suited to small rooms, but its narrow shape; elegant, curving form, and simple controls will still make it a good option for many users.
During this update, we removed a lot of models that didn't meet our stringent criteria. Some examples include the HomeLabs Personal, which many users felt was too loud, and the Oxa Whisper-Quiet, for having a tendency to leave pools of water on the floor around the machine.
One of the new additions to our list is the Elechomes UC5501. It offers a large output capacity that makes it well-suited to common areas of a home, and it features a big LED display that is easy to see from across the room. We also added the TTLife Ultrasonic 5.5L, which has some convenient features, such as the flip-up handle on the reservoir that makes it easy to carry when full and the built-in aroma box for adding essential oils. It also boasts both warm and cool mist settings, as does the Levoit LV600HH.
Special Honors
Venta Air Washers Venta, a German brand with a U.S. arm, makes evaporative humidifiers that turn a stack of plastic discs through a water bath, so there's no mist, no wick filter and no white dust. Its U.S. store lists models rated for rooms of about 375 to 1,290 square feet, including the LW45 Original that used to appear on this list. venta-air.com
Lennox Healthy Climate HCWP3-18 This whole-house power humidifier mounts on a furnace or air handler and has its own fan, so it doesn't need a bypass duct. Lennox rates it at 18 gallons a day, offers manual or automatic control, and backs it with a five-year residential warranty. It's sold and installed through Lennox dealers. lennox.com
Cool Mist, Warm Mist Or Evaporative
Home humidifiers add water to the air in one of three ways.
Home humidifiers add water to the air in one of three ways. Ultrasonic models vibrate a small disc to throw off a fine, cool mist. They run nearly silently and need no filter, but whatever minerals are in the water go into the air too, which settles as white dust on furniture and screens. Evaporative models use a fan to pull air through a wet wick. They put out no visible mist and no dust, and they slow down on their own as the room gets humid, but the fan makes a steady hum and the wick needs replacing. Warm-mist models, sometimes called vaporizers, boil the water.
In a 2016 Consumer Reports test of 34 humidifiers, none of the 10 evaporative wick models emitted bacteria, while all the ultrasonic models and all but one vaporizer did release some; the testers also found ultrasonic units most likely to spread white dust and evaporative units the loudest. A Mayo Clinic staff Q&A says warm and cool mist humidify equally well, but steam and hot water can burn a child, so cool mist is the safer choice in kids' rooms. Some models, such as the Levoit OasisMist 450S, offer both.
Room Size, Tank Size And Bedroom Noise
Makers rate humidifiers by room size in square feet. Treat those numbers as claims, since real output depends on ceiling height, open doors, drafts and how dry the air starts. Reviewed.com is one of the few outlets that measures output, by weighing each tank before and after three hours on high in a climate-controlled chamber. If you're between sizes, size up and run it on a lower setting, which is also quieter.
Aim for 30 to 50 percent relative humidity. The EPA advises keeping indoor humidity below 60 percent, ideally between 30 and 50, because damp air feeds mold and dust mites. A cheap hygrometer, or a humidifier with a built-in sensor and auto mode, keeps you in that range. For bedrooms, look for a sleep mode that dims the lights, a tank big enough to last the night (most 4- to 6-liter tanks do), and top filling, which saves carrying a sloshing tank to the sink and flipping it.
Cleaning, Water And White Dust
A humidifier that holds standing water can grow bacteria and mold and blow them into the room. The Mayo Clinic staff Q&A recommends emptying the tank and drying every surface every day, and using water labeled distilled or purified, which has fewer minerals than tap water. Consumer Reports advises disinfecting on the maker's schedule, usually weekly. Distilled water also stops white dust from ultrasonic models; wick and steam units don't make dust, but their filters and heaters collect the minerals instead.
Budget for upkeep. Wick filters on evaporative units need replacing, more often in hard-water areas, and owners commonly say they cost more than expected. Steam units need descaling. Don't put essential oils in the water tank unless the maker allows it; use the separate aroma tray or pad where one is provided. Whole-house units such as the AprilAire 500 run off the furnace and need a water line and wiring. The 2023 recall of AprilAire steam humidifiers covers models 800, 801, 865 and 866, not the evaporative model 500.
How we researched this
We compared 21 humidifiers, read the makers' published specs for the 10 finalists, used Reviewed.com's chamber test results, Consumer Reports' published humidifier test findings and Better Homes & Gardens' warm-mist picks where they covered our picks, analyzed owner feedback patterns, and checked every brand against the U.S. Consumer Product Safety Commission recall database. Health guidance comes from Mayo Clinic staff and the EPA.
Sources (12)
- Reviewed: The best humidifiers
- 6abc: Consumer Reports tests humidifiers
- Mayo Clinic staff via Mosaic Life Care: warm vs. cool mist
- EPA: A brief guide to mold, moisture and your home
- CPSC: Research Products recalls steam humidifiers (2023)
- Better Homes & Gardens: best warm-mist humidifiers
- RTINGS: humidifier reviews
- Lennox: HCWP3 humidifier bulletin
- Venta: humidifiers (U.S. store)
- Levoit
- Vornado
- AprilAire
Frequently asked questions
What is the best humidifier for a bedroom?
A quiet, top-fill cool-mist model sized for the room, with a sleep mode that dims the lights. The Levoit Classic 300S fits that description. If white dust bothers you, a wick model such as the Honeywell HCM350B avoids it, at the cost of some fan noise.
Is a cool-mist or warm-mist humidifier better?
Both raise humidity equally well, according to Mayo Clinic staff. Cool mist is safer around children and pets because there's no hot water or steam. Warm mist doesn't spread white dust and may feel more comfortable in a cold room.
What humidity level should I set?
Between 30 and 50 percent. The EPA advises staying below 60 percent, because damp air helps mold and dust mites grow.
How often should I clean a humidifier?
Empty, rinse and dry it every day, and disinfect it on the maker's schedule, usually once a week. Replace wick filters as the manual directs.
What is the white dust from my humidifier?
Minerals from tap water, thrown into the air by ultrasonic models. Distilled or demineralized water prevents it, and evaporative and steam humidifiers don't produce it.
What size humidifier do I need for a large room?
Check the maker's square-foot rating against your room and size up if in doubt. For 500 square feet or more, look at units rated for 600 to 1,000 square feet, such as the Levoit OasisMist 1000S or Vornado Evap40. To cover a whole house, a furnace-mounted unit like the AprilAire 500 is the usual answer.
