GoodKnight H2O CPAP humidifier

GoodKnight H2O CPAP humidifier
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GoodKnight H2O heated CPAP humidifier for GoodKnight CPAP 420/425 by Covidien

Improve Comfort and CPAP Compliance

For CPAP patients experiencing upper airway dryness, Puritan Bennett offers a mist of relief with the GoodKnight H2O Heated Humidifier.

Designed for use with the GoodKnight 420 Series CPAP System or GoodKnight 425 Bi-Level Device, the GoodKnight H2O Heated Humidifier increases air humidity, reducing patient dryness in the nose and throat.

By improving comfort, it may help promote patient compliance with sleep apnea treatment. In addition, the humidifier features a small footprint that fits neatly with GoodKnight sleep therapy devices, creating the smallest, lightest, CPAP / heated humidifier on the market.


HumidControl Feature
The HumidControl feature ensures a consistent temperature difference between the water and ambient air to minimize condensation in the tubing ("rain out") and keep the humidification level constant throughout the night

Space-saving design
Adds only 3 inches to the length of any Goodknight 420/425 sleep therapy device.

Easy to Clean
Comes with a detachable, dishwasher safe water chamber for trouble-free maintenance.

Each to use
Features a rotary button that allows patients to adjust heating level.

Product Specifications
  • Maximum Flow: 120 liters per minute (leak flow included)
  • Pressure fall according to the flow: 0.2 cm H2O
  • Service maximum pressure: 25 cm H2O
  • Maximum gas temperature at the breathing circuit outlet: 106 Degrees F (41 Degrees C)
  • Humidification rate: 12 mg H2O/L at 60 L/min and at the maximum setting
  • Time of heating: Less than or equal to 45 minutes
  • Duration necessary for the water temperature
  • to reach 90% its value set, on a 23 +/i 2 Degrees C temperature basis: 60 min.
  • Dimensions (W x H x L): 6.7" x 3.7" x 11" (170 x 95 x 280 mm)
  • Weight (when empty): 1.76 lb
  • Operational volume: 213 cm cubed (minimum volume of gas in the chamber)
  • Usable volume of the water chamber: 350 mL
  • Maximum level of liquid: indicated on the chamber
  • Power Characteristics: AC power cord supplies power to humidifier only; sleep therapy device has separate power cord
  • Input voltage: 100 VAC (+/- 15%), 120 VAC (+/-10%/-20%),230 VAC (+/- 10%), 50/60 Hz (Power supply cord adaptable in accordance with the country)
  • Temperature: -4 Deg C to +140 Deg F (-20 Deg C to +60 Deg C)
  • Relative humidity: between 15% and 95% without condensation
  • Relative pressure range: 700 hPa to 1060 hPa
  • Maximum temperature: +5 Deg C to +40 Deg C
  • Relative humidity: between 15% and 95% without condensation
  • Relative pressure range: 700 hPa to 1060 hPa
7 cm
4 cm
11 cm
0.80 kg