PowerPure 4000 Ultrasonic Humidifier by Aerus

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The PowerPure 4000 by Aerus Warm & Cool Mist Ultrasonic Humidifier has been discontinued.

The PowerPure 4000 ultrasonic warm & cool mist humidifier features near silent operation, a permanent water filter, an easy to read digital control panel and a remote control. An authorized PowerPure humidifier dealer and only available at

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The PowerPure 4000 warm & cool mist humidifier offers contemporary good looks and features which guarantee premium performance for a more healthier and comfortable home. The 4000 model emits up to 2.3 gallons of moisture per day and will effectively humidify spaces up to 500 square feet. The included remote control adjusts settings from across the room. Relieve those painful symptoms from colds, the flu and allergies by maintaining a healthy 35-45% relative humidity range. An LCD control display screen and soft push buttons allow you to set your humidity level, view the current temperature and relative humidity. This humidifier offers near silent operation and the convenience and safety of an auto shut off feature which turns the humidifier off when water levels become depleted. The PowerPure 4000 features a permanent, money saving ceramic filter that is designed to soften and clean the water in your water tank. Color: White.

See our entire family of PowerPure Humidifiers.

  • Prefers a high quality humidifier at an reasonable price
  • Desires a near silent humidifier for their bedroom or living space
  • Is looking for a clean, contemporary design that will blend into any environment

  • Humidifies up to 500 square feet
  • Ultrasonic technology offers near silent operation
  • Permanent ceramic filter softens and cleans water in the holding tank
  • Intuitive LCD control panel
  • Soft touch buttons
  • Remote control
  • 12 hour timer function
  • 360 degree mist output direction control
  • Temperature display
  • A water tank viewing window
  • Automatic low water shut-off
  • Easy monthly maintenance
  • High quality, industrial strength ceramic transducer
  • Designed to offer a long term lifespan
  • Engineered in USA, made in China
Once a month, empty water basin and gently wipe down with a soft cloth and carefully rinse clean. If organic buildup does occur in basin, simply soak a 50/50 mixture of water and white vinegar in the basin for ten to fifteen minutes. Carefully drain and rinse with fresh water and wipe down with a soft cloth. Thoroughly drain and clean before storing the humidifier for any extended period of time.
Ultrasonic humidifiers are not designed for placement on the floor. These humidifier's output of moisture requires time to evaporate so placement on night stands, bureaus and counter tops is advised to avoid residual moisture on the floor.
1. Room Coverage
2. Level of Quietness
3. Filter Life & Cost of Replacement Cartridges
4. Amount of Maintenance Required
5. Anti-bacterial Features
6. Ease of Filling
7. Ease of Operation and Filter Replacement
8. Quality of Construction
9. Humidistat to select desired humidity level & hygrometer to display the actual humidity in the room
10. Frequency of Filling
11. Value for Price

The PowerPure 4000 humidifier has been manufactured to the highest standard, ensuring high quality performance along with an expected long life span. This warm & cool mist humidifier has all the features one can ask for in an ultrasonic humidifier at a very competitive price.


  • Humidifies large rooms up to 500 square feet
  • Option of warm or cool mist
  • Easy to read LCD control panel with soft touch buttons
  • Extremely quiet operation, less than 35dB(A)
  • A permanent ceramic filter reduces cost of ownership and improves performance
  • High quality, industrial grade components
  • Hygrometer is located on power cord for accurate humidity readings
  • Low maintenance level
  • Attractive design will work in any environment


You will appreciate the PowerPure 4000 Ultrasonic Humidifier's intuitive controls and it's ability to solve problems associated with the dry air in your home. Ultrasonic technology has become the most popular humidifier technology due to its ability to provide more than ample amounts of moisture at near silent decibel levels. The PowerPure 4000 is no exception—the 1.32 gallon water tank and ceramic transducer can output up to 2.3 gallons of warm or cool mist moisture per 24 hours, providing relief all day and night.

PowerPure 4000 by Aerus Warm & Cool Mist Ultrasonic Humidifier


PowerPure 4000 by Aerus Warm & Cool Mist Ultrasonic Humidifier

Technical Specifications of PowerPure 4000 by Aerus Warm & Cool Mist Ultrasonic Humidifier

  PowerPure 4000 by Aerus Warm & Cool Mist Ultrasonic Humidifier
Room Coverage
Room Coverage 500 sq. ft.
Tank Capacity
Tank Capacity 1.32 gals.
Humidification Performance
Humidification Performance 2.3 gals. per day
Auto Shut-Off
Auto Shut-Off Yes
Noise Level
Noise Level Near Silent: ≤35dB(A)
Type of mist
Type of mist Warm & Cool
Power Supply (Volt, Hertz, Watts)
Power Supply (Volt, Hertz, Watts) 120V, 60Hz, 30 Watts
Adjustable humidity control
Adjustable humidity control Yes
Recommended cleaning period (unit in use)
Recommended cleaning period (unit in use) Monthly or as needed
Type of humidifier
Type of humidifier Ultrasonic
Color White w/ black accents
Dimensions 7.24” W x 9.05” D x 13.89” H
Warranty 1 year

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