AIRCARE 4DTS-900 Whole House Digital Humidifier

By: AIRCARE Essick Air

$247.99 $189.99

Manufacturer Part # 4DTS-900 Our Item # IA3960

The AIRCARE Executive Whole House Humidifier 4DTS-900 is an evaporative cool mist humidifier featuring an 11.4 gallon output for areas up to 2700 sq ft. In addition to its sleek design, the Digital Touch Screen Control Panel automatically maintains your desired humidity level with digital accuracy. It has dual 2.75 gallon tanks that hold up to 5.5 gallons of water, and a nine speed variable fan for convenient and flexible operation. The 4DTS900 also features a high output evaporative wick which retains minerals and delivers clean and natural moisture into the air.

AIRCARE by Essick Air


  • Digital Touch Screen Control Panel automatically maintains your desired humidity level with digital accuracy
  • 9 fan speeds allows you to select your ideal performance level
  • Desired humidity can be set between 25% and 60% in 5% increments (continuous always-on mode when set to 65%)
  • Automatically shuts off when desired humidity level is reached or when unit is empty
  • Refill indicator shows when unit needs refilling
  • Night-time setting turns off display for a restful sleep
  • Exclusive shallow water channel allows reduced volume of standing water
  • Easy to fill: Two removable 2.75 gallon water bottles lift out for easy filling at your sink with fill hose (included)
  • Easy to clean: Removable power pack simplifies cleaning, and evaporative Super-Wick traps mineral deposits
  • Absolutely No White Dust: Super-Wick traps all minerals and impurities from the water, delivering 100% clean and invisible evaporated moisture
  • Easy-roll casters for portability from room to room as needed
  • Check filter indicator
  • Built in the USA (of domestic and imported parts)
  • Two-year limited warranty


  • Humidifier Type: Cool mist evaporative
  • Daily Output: 11.4 gallons
  • Room Size: up to 2700 sq ft
  • Tank Capacity: 5.5 Gallons (Dual 2.75 gallon water bottles)
  • Maximum run time: up to 48 hours per fill (on low speed)
  • Fan Speeds: 9
  • Dimensions: 27" W x 13.25" D x 21.5" H
  • Weight: 24 lbs
  • Power Cord Length: 60"
  • Decibel Levels: 46-75 dB(A)
  • Power: 120 V / 60 Hz; 2.0 Amps, 80 Watts, ETL Listed
  • Color: Brushed Nickel

What's Included:

  • 4DTS900 Humidifier
  • 1041 Super Wick
  • 1051 AirCare Filter
  • Product Manual
  • Set of four casters
  • Two Removable 2.75 Gallon Water Bottles
  • Two Bottle Caps
  • Water Bottle Fill Hose
  • Float Assembly (Float and Float Support)

Replacement Filters:

  • Replaceable Super-Wick 1041 (included)
  • Optional 2-stage AirCare filter 1051 (included) traps airborne particles, and prolongs the life of the wick.

Manufacturer's Literature [PDF]:

Essick Air 4DTS900 Product Manual

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