Boneco Warm Mist Steam Humidifier S250

By: Boneco AIR-O-SWISS


Manufacturer Part # S250 Our Item # IA4514

The Boneco S-250 Steam Humidifier offers hygienic air humidification that produces safe to the touch warm steam output, eliminating burn risks from hot steam found in other warm mist steam humidifiers and vaporizers. This makes the S250 ideal for all living areas and families with children.

Lowest Price Guaranteed


Special Health and Hygiene Features:

  • Pure Steam Output is bacteria and mineral free, for the cleanest and healthiest form of moisture. The boiling process eliminates bacteria and viruses, and leaves any lime scale and calcium mineral deposits behind in the humidifier, ensuring only 100% pure and natural steam enters your air. No bacteria and no white dust!
  • ClearMist Technology eliminates the burn risk associated with other warm mist steam humidifiers, which means you can safely put your hand right to the steam output. How is this possible? Water is heated internally to the boiling point. A small and quiet fan then automatically lowers the temperature of the steam just before it exits the unit, keeping the steam temperature safe to the touch! 

Additional Features and Benefits:

  • State of the art touch-sensitive digital controls with large digital display
  • Two steam output levels
  • Built-in digitally controlled humidistat allows for automatically controlled and accurate moisture level
  • Desired humidity can be set between 30% and 70% in 5% increments
  • AUTO mode automatically maintains the ideal air humidity
  • CLEANING mode makes cleaning simple and easy (automatically warms and cools the heating plate multiple times to break up hard water lime scale mineral deposits for easier removal) 
  • Indicator light shows when cleaning is recommended
  • Auto shut-off and indicator when water tank is empty
  • Removable transparent water tank with handle and large opening for easy filling and cleaning.
  • Water level window
  • Medicine cup / fragrance dispenser for dispersing soothing vapors or essential oils
  • Optional anti-mineral absorption pad decreases mineral buildup and reduces maintenance (sample pad included).
  • 3-year limited warranty.


  • Type: Warm mist steam
  • Max Daily Output: up to 1.8 gallons / 24 hours
  • Room Size: up to 430 sq ft
  • Tank Capacity: 0.8 gallons
  • Speeds: 2 steam output levels
  • Decibels: < 35 dB(A)
  • Energy Consumption: 145W Low, 285W High
  • Power: 120 V / 60 Hz
  • Dimensions: 12.5" L x 6.8" W x 11.1" H
  • Weight: 5.5 lbs

BONUS! FREE Sample packet of EZCal Cleaner and Descaler included!

Manufacturer's Literature [PDF]:

Boneco S250 Product Manual
Boneco S250 Quick Start Guide