Boneco S250 Digital Steam Humidifier

Our Expert Rating:

The Boneco S250 Steam Humidifier provides hand-warm, bacteria-free steam in spaces up to 430 sq. ft. in size, like a bedroom or office—plus it is safe for use around children and pets. It features an LED display panel with easy-to-use touch controls. See our expert rating & reviews.

Boneco S250 Digital Steam Humidifier

Humidifies spaces up to 430 sq. ft. in size. Bacteria-free steam. Digital LED display. 3-year warranty.

AVAILABILITY: In Stock. Ships Same or Next Business Day.

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The Boneco S250 Steam Humidifier offers hygienic, bacteria-free humidification in rooms up to 430 square feet in size. The S250 operates quietly and efficiently to achieve your desired level of humidity in your home. It features a unique, cooling fan that cools the steam down before emitting it into the environment, releasing hand-warm steam which is ideal for homes with children or pets. The S250 has a cleaning mode for simple cleaning and auto mode for the automatic regulation of humidification and worry-free operation. Its digial LED panel is user friendly with touch-sensitive controls and a humidity indicator. Other features include a timer, cleaning and maintenance reminders, sleep mode and a fragrance dispenser. The Boneco S250 steam humidifier is constructed of high-quality components and is built to last.
  • Wants a humidifier that is safe to use around their children or pets
  • Is seeking a humidifier with hygienic, bacteria-free steam
  • Needs a humidifier for their bedroom or small office space
  • Would like a humidifier with an auto mode for worry-free operation

  • Humidifies spaces up to 430 square feet in size
  • Humidity output of 1.8 gallons per day
  • Water tank capacity: 0.8 gallons
  • Programmable hygrostat
  • Creates bacteria-free steam for hygienic humidification
  • Digital LED display with touch-sensitive controls
  • Humidity indicator on the LED display
  • Cooling fan for child-friendly, hand-warm steam
  • Quiet operation: <35 dB(A)
  • Fragrance dispenser for use with essential oils (oils not included)
  • Cleaning mode
  • Auto mode
  • Sleep mode
  • Cleaning reminder
  • Maintenance reminder
  • On/off timer function
  • Removable water tank with a handle
  • Does not require filter pads or additives
  • Includes 1 EZ Cal cleaner package and 1 Anti-Mineral pad
  • Manufacturer's 3-year warranty
  • The Anti-Mineral Pad absorbs a large part of limescale while in operation. It reduces excessive calcification of the steam tray as well as the frequency of necessary decalcification. To insert the Anti-Mineral Pad, remove the top cover, water tank and steam pipe from the unit. Now insert the supplied Anti-Mineral Pad directly into the steam tray and reassemble in reverse order. The Anti-Mineral Pad needs to be replaced as soon as it is completely full of lime. Depending on the hardness of your water, it needs to be replaced every 2 to 4 weeks. Dispose of the pad with your household waste.

  • Remove the Anti-Mineral Pad before starting the cleaning mode. First, dissolve the included EZ Cal cleaning agent into 32 oz. of warm water and pour directly into the base of the S250. Then reinsert the steam pipe and top cover. Switch the humidifier to Decalcification Mode. You can change the decalcification period from 1 to 9 hours depending on the level of soil on the steam tray.
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 S250 humidifier is made of high-quality components, ensuring a long life and efficient humidification. You can trust the S250 to provide safe, bacteria-free humidity in your home—set it to auto mode and it will automatically adjust to the appropriate performance level for you.


  • Digital LED display is easy to read and operate
  • Steam is cooled down before it is released into the room, making it safe for use around children and pets
  • Does not require any filters or additives
  • You can use your favorite essential oils in the fragrance dispenser (oils not included)
  • When set to Auto Mode or Sleep Mode the humidifier will automatically choose a suitable performance level
  • The water tank has a handle for easier transport when filling
  • Cleaning and maintenance indicators let you know when maintenance is required


The Boneco S250 Steam Humidifier provides bacteria-free humidification with hand-warm temperature-controlled steam for safe, hygienic operation. It humidifies spaces up to 430 square feet in size, making it suitable for bedrooms and offices in your home. The S250 features a digital LED display panel with touch-sensitive, user-friendly controls and it includes a 0.8-gallon water tank with a handle for easy carrying. The S250 is safe to use around children and pets, making this a nice choice for families.

Boneco S250 Digital Steam Humidifier


Boneco S250 Digital Steam Humidifier

Technical Specifications of Boneco S250 Digital Steam Humidifier

  Boneco S250 Digital Steam Humidifier
Room Coverage
Room Coverage 430 sq. ft.
Noise Level
Noise Level < 35 dB(A)
Mist Output Levels
Mist Output Levels Up to 1.8 gallons per 24 hours
Power Supply (Volt, Hertz, Watts)
Power Supply (Volt, Hertz, Watts) 120V, 60Hz, 145 & 285 watts
Capacity 0.8 gal.
Weight 5.5 lbs.
Dimensions 6.77"w x 12.44"d x 11.03"h
Warranty 3-year warranty

Video Reviews of Boneco S250 Digital Steam Humidifier

Filters & Accessories for Boneco S250 Digital Steam Humidifier

Boneco Anti-Mineral Pads for Steam Humidifiers 6 Pack

One box of 6 replacement Anti Mineral Pads for the Air-O-Swiss S450 steam humidifier.

Availability: Temporarily Out of Stock

AS HU A451


EZ Cal Humidifier Cleaner

3 Packages of EZCal decalcification cleaner for all AOS units. 3 packets per package for a total of 9 packets. For best results, use 1 packet for 32 oz of water every 2 weeks.

Availability: In Stock. Ships Same or Next Business Day.