Pros / When it gets dark, the lights on the Winix AW600 go off and the fan speed lowers automatically.

Cons / This is the heaviest humidifier we reviewed, and it is large enough to be a bit too bulky for some households.

 Verdict / While the initial investment is steep, this humidifier is quiet, easy to maintain and great at removing the allergens from your air.

Our Top Ten Reviews Bronze Award winner, Winix, is known for its high-performance air purifiers. It combines this technology with humidifying capabilities to create a machine that gives you high humidity output in your home as well as excellent air purification. The Winix AW600 humidifier not only provides humidity to ease the unpleasant effects of excessive dryness in your home, but it also cleans the air. In addition, it operates almost silently and provides welcome features, such as a sleep mode that turns off the display lights and adjusts the fan to its lowest setting at night.

Winix AW600 Visit Site
  • Water Output
  • Humidification Area
  • Tank Size
  • Weight
  • Warranty
  1. How much water can be made into mist during a 24-hour period.
    more is better
  2. 3  Winix
    3.17 gallons
  3. 1  Boneco
    3.5 gallons
  4. 1.4 gallons
  5. Category Average
    2.23 gallons


Unlike ultrasonic humidifiers, which create mist through a vibration process, the Winix AW600 operates by drawing room air over rapidly spinning discs that the machine repeatedly rinses. This draws allergens and impurities to the discs and washes them away. The purified water then spins into clean and extraordinarily fine mist particles using a combination of impeller and evaporative humidification.

For additional air quality and purity, the discs have an antimicrobial coating, and the humidifier has the proprietary PlasmaWave technology as well as a dual HEPA and carbon combination filter. These features work together to rid the air of numerous unpleasant and unhealthy particles. The result of all this is that you get a freshly moistened emission of air into your home that is free of odors, bacteria, viruses, mold spores, dust, pollen, pet dander and allergens.


This air-purifying humidifier dispenses up to 3.17 gallons of water per day, depending on the output speed you set, so it can clean and humidify the air in areas up to 600 square feet. This is the second-highest water output in our review behind the Boneco 7135. This is something of a hybrid machine, since it does not function exactly as a cool mist humidifier nor a warm mist humidifier, but you get the same kinds of benefits as you would from those devices, along with getting cleaner air in your home the same way you would with a top-quality air purifier.

This is an excellent humidifier if you have a baby at home or young children, since you need not worry about possible hot water spills if the device gets overturned. In addition, the air the children breathe will be pure and nicely moisturized.


The controls are located on an easy-to-use digital display. The sleep mode button turns off the display lights and slows the humidifier fan to its lowest speed when you want to sleep or study without distraction. While you can choose this option at any time of day, in default mode, it happens automatically as nighttime comes and the light fades. The unit also shuts off when the water is low, saving power and wear on the machine.

This is the heaviest of all the humidifiers we reviewed, weighing in at 15.4 pounds, and it is also rather large in height, width and length. This could be a problem for households where space is an issue. On the other hand, this machine has a sleek and contemporary design that fits nicely into nearly any decorating plan. You do not get a transparent tank, but you do get an area where you can see the water level so you know when to refill.

Warranty & Support

The Winix AW600 is supported by a three-year warranty, which is quite good in the world of humidifiers. If you run into problems, you can contact the company through email or by phone. You can also check the FAQs page that addresses questions regarding air purifiers and humidifiers or download the user manual. 


The Winix AW600 is a feature-rich humidifier that is effective and durable. Designed as both a humidifier and air purifier, it uses several methods to kill germs while also ridding your air of symptom-triggering allergens and quietly dispensing ultra-clean, particle-free moisture into the air.

Winix AW600 Visit Site

Specifications and Benchmarks


Humidification Area (square feet)
Water Output (gallons per day)
Tank Size (gallons)
Ultrasonic or Evaporative
Germ-fighting Technology


Mineral Removal Filter
Carry Handle
Transparent Tank
Weight (pounds)
Length (inches)
Width (inches)
Height (inches)


Cool Mist
Warm Mist
Auto Shut-Off
Digital Display

Warranty & Support

3 Years
Online Manual