H4i™ Heated Humidifier for S8™ / S8™ II Series Machines - DISCONTINUED


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View S8 Series H4i Heated Humidifier Parts

  • For Reference:Discontinued 07.17.2013
  • Brand:ResMed

ResMed's H4i Integrated Heated Humidifier offers some major improvements on the original HumidAire 3i that bring even greater simplicity and more comfort. With 30% more humidity, the H4i really helps sooth dry mouth and nasal irritation that can sometimes be caused by CPAP therapy. Research proves that the warm, moist air humidification provides helps relieve symptoms of dryness and makes sleep therapy more comfortable.

S8 CPAP WITH H4I HEATED HUMIDIFIERThe H4i clicks easily into place for seamless integration and supports ResMed’s full S8 platform including the S8 Compact, S8 Escape/Escape II, S8 Elite/Elite II, S8 Vantage, S8 AutoSet II, VPAP S, VPAP ST, and VPAP Auto/Auto 25. The compact design is unobtrusive in the bedroom and easily packed for travel.

The ResMed H4i offers user-friendly humidity control with a dial that’s easy to read in the dark, and it’s quick to respond to any adjustments you make. It also has greater water capacity that supports humidification needs at higher flow rates and pressures, and a convenient flip top lid that makes it easy to refill.


  • A Seamlessly integrated unit that snaps firmly into place
  • User-friendly humidity control with a dial that is easy to use in the dark and quick to respond
  • The flip top lid design is convenient and easy to use; no need to remove tub to refill water chamber
  • Compact design is unobtrusive in the bedroom and easily packed for travel
  • 390 ml capacity offers high volume, high efficiency humidification


  • For Reference:Discontinued 07.17.2013
  • Manufacturer:ResMed
  • Part Numbers:26940
  • In The Package:H4i Heated Humidifier with Standard Water Chamber.
  • HCPCS Codes:E0562
  • RX Required:Prescription required prior to shipment. Click to learn more about submitting prescriptions.
  • FLEX SPENDING:Can be purchased with FSA & HSA Cards
Dimensions & Weight (Approximate)
  • Chamber and Docking Station: 4.5" x 6.7" x 8.3" (118 mm x 170 mm x 212 mm)
  • Chamber (Unfilled) and Docking Station: 1.5 lb (670 g)
  • Power Supply: NA (Power provided directly by CPAP/BiLevel system)
Performance & Power
  • Water Capacity at Max Fill Line: 390 ml
  • Maximum Heater Plate Temperature: 185°F (85°C)
  • Maximum Output Humidity: 95% relative humidity (control dial set to maximum setting, flow rate 50 L/min, ambient temperature of 68°F (20°C), ambient relative humidity of 15%)
  • Universal Power Supply: Input Range 100-240 V, 50-60 Hz
  • Warranty: 2-Year Manufacturer's Warranty (Humidifier)