Boneco U300 Ultrasonic Cool Mist Humidifier, Top-Fill

The Boneco U300 ultrasonic cool mist humidifier provides soothing, comforting humidity in living spaces up to 540 square feet in size. The U300 features a simple top-fill design, making it easy to fill and clean the 1.32-gallon water tank. Users can manually adjust the mist output to a desired level via the control knob on the front of the humidifier. The U300 top-fill humidifier comes with an A250 Aqua Pro water filter that removes contaminants from the water so clean, fresh water is dispersed into the room. Manufacturer’s 3-year warranty and 60-day money-back guarantee.
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This product provides relief from: Sinus Trouble

Experience soothing, cool mist humidification with the Boneco U300 cool mist ultrasonic humidifier. The U300 humidifier features an easy-to-use, top-fill design for simple filling and cleaning of the 1.32-gallon water tank. Simply pour water into the top of the humidifier wherever it is—you no longer need to carry a full water tank around your home or worry about spilling water! The U300 humidifier has a control knob that allows users to choose their desired mist output level, plus it has a fragrance container for use with essential oils to create a comforting space (oils not included). Other notable features include auto shut-off when the water base is empty, a low water level indicator and an A250 Aqua Pro filter for pure humidification. The Boneco U300 ultrasonic top-fill humidifier is backed by a manufacturer’s 3-year warranty.


  • Cool mist humidification
  • Easy, top-fill design
  • 1.32-gallon water tank with a max fill line
  • Tank window on the front to quickly view the water level
  • Manual humidity control knob (min to max settings)
  • Humidity output: 2.5 gallons per day
  • Simple maintenance and easy-to-handle design
  • Integrated hygrostat
  • Auto shut-off when the water base is empty (red water level indicator)
  • Fragrance container for use with fragrances and essential oils (not included)
  • Winner of the Red Dot Design Award
  • Includes a 2-in-1 A250 Aqua Pro water filter
  • Manufacturer’s 3-year warranty

Specifications for the Boneco U300 Ultrasonic Cool Mist Humidifier, Top-Fill :

Model Number: U300, 44722
Humidifying Mode: Cool mist - ultrasonic
Mist Delivery Method: Dual-mist outlet
Mist Outlet Location: Top of the humidifier
Recommend for: Living spaces or bedrooms
Main Voltage: 120V / 60Hz
Weight: 7.7 lbs
Power consumption: 45W
Dimensions: 6.49”w x 12.12”d x 12.79”h
Humidity Output: 2.5 gallons a day
Tank Capacity: 1.32 Gal.
Area Coverage: For rooms up to 540 square feet
Auto Shut Off: Yes
Low Water Indicator: Yes
Humidistat: No
Controls: Manual control knob
LED indicators: Refill water indicator
Color: White
Filters: A250 Aqua Pro
Warranty: Manufacturer’s 3-year warranty
The Boneco A250 Aqua Pro Filter can last up to 6 months. A water test strip is included with the A250 filter so users will have a better understanding of how long the filter will last based on their water hardness. Replace the A250 Aqua Pro filter every 6 months or less based on your water hardness.