The Best Room Humidifiers for Your Home

A heated home doesn't have to go hand in hand with dry air. Pick out the perfect room humidifier with the help from our guide, and you'll rest comfortably indoors all season long. and its partners may earn a commission if you purchase a product through one of our links.



Heating and air conditioning strip your home’s air of its natural humidity. The result: An uncomfortable dryness that leaves your skin feeling dehydrated, contributes to sinus and respiratory problems, and even promotes static electricity—that annoying shock you get every time you cross a carpeted room and touch the television.

A little added moisture in the air helps alleviate dust mites and soothes irritated nasal passages. In addition to a handful of household hacks, homeowners can rely on humidifiers to help the situation. Humidifiers have been around for decades but today’s models offer more choices than ever before. We’ve done the legwork and found out what features buyers want most in room humidifiers as well as which models they rate as the best room humidifiers.

Keep reading to learn all about today’s room humidifiers and to discover why we’ve selected these three as top choices, depending on your home and your needs.

  1. BEST FOR SMALL ROOMS: InvisiPure Sky Ultrasonic Cool Mist Humidifier
  2. BEST FOR LARGE ROOMS: Pallas Humidifier
  3. ALSO CONSIDER: Truky Aromatherapy Ultrasonic Aroma Diffuser
The Best Room Humidifiers, According to Happy Homeowners


Key Considerations When Choosing a Room Humidifier

Demystify cool mist versus warm mist.

Both cool mist and warm mist humidifiers add much-needed moisture to dry indoor air, with slight differences.

  • A standard warm mist humidifier brings its water to a boil to inject the room’s air with a little extra moisture; this high heat reduces the risk of bacterial transmission, leading it to be considered slightly healthier. Warm mist humidifiers are also typically quieter to operate since steamy mist naturally rises, eliminating the need for an internal fan. They do require additional cleaning, however, because the boiling process leaves behind mineral deposits.
  • A cool mist humidifier uses a fan to blow air through a damp wick, so it can be noisy when it turns on. Cool mist humidifiers are preferable to warm mist humidifiers, however, in homes with small children since undo the dry air without presenting a risk of steam burns to little fingers.

Understand ultrasonic technology.

Ultrasonic humidifiers—the new kids on the block—can disperse a warm mist or a cool mist, or both. Cool mist option is more common, but some models include an internal heater that facilitates a cool mist in the summer and warm mist in the winter. Instead of utilizing a strong fan, as your standard cool mist humidifier might, an ultrasonic humidifier breaks up water droplets into mist using a ceramic diaphragm that vibrates at a frequency too high to be audible to the human ear. Best of all, most ultrasonic humidifiers are whisper-quiet, so they won’t interfere with your sleep.

Size up your needs.

A humidifier that is too small may not be sufficient, while one that’s too large could add so much moisture in the room that droplets appear on furniture and other surfaces. Fortunately, humidifiers are rated by intended room size. A small room humidifier effectively treats rooms with less than 400 sq. ft. of floor space. They are often portable and lightweight, making them a good choice for bedrooms, nurseries, kitchens, and other small rooms. Medium-size room humidifiers treat rooms between 400 to 900 sq. ft. and are only semi-portable. For a room with 1,000 sq. ft. or more, look for a large room humidifier. Large room humidifiers feature bigger water reservoirs and therefore are stationary.

Our Top Picks

Best for Small Rooms

With whisper-soft operation, the InvisiPure Sky Ultrasonic Cool Mist Humidifier is a hit with light sleepers as well as parents of infants and toddlers. It comes with an easy-to-clean 1-gallon water reservoir that gently humidifies rooms for up to 40 hours on a single fill. The InvisiPure features a 360-degree nozzle so you can direct the mist output in any direction, and the unit automatically shuts off when the reservoir runs dry. At less than 12 inches high and 7 inches wide, this compact humidifier won’t take up much room on a dresser.

Best for Large Rooms

The Best Room Humidifier Option: Pallas Cool Mist Humidifier

For great rooms and family rooms larger than 800 square feet, the Pallas Humidifier is just the ticket. Its 5-liter reservoir infuses the air with moisture for up to 20 hours on a single fill. It features a 360-degree rotating nozzle so you can direct cool mist in any direction, and it contains an activated carbon cartridge to filter microorganisms and dust particles out of the air.

Also Consider

The Best Room Humidifier Option: Truky Aromatherapy Cool Mist Humidifier

Set the mood with relaxing or uplifting aroma just by adding a couple of drops of essential oil to the Truky Aromatherapy Ultrasonic Aroma Diffuser. Resembling a decorative vase, this stylish humidifier allows you to add your favorite essential oils and infuse the air in small rooms (up to 400 square feet) for up to five hours on a single fill. The fragrant accessory is a perfect addition to the space where you sleep, meditate, or practice yoga. The Truky humidifier features a seven-color LED light, so you can select a colorful glow to match your current mood.