GoodKnight 420E Auto-CPAP - DISCONTINUED


 Total Reviews

View GoodKnight 420E Auto-CPAP Parts

  • For Reference:Discontinued 10.01.2009
  • Brand:Puritan Bennett
  • Part Numbers:Y-GK420E-NA

Weighing in at just 1.56lbs and a mere 2.9 inches tall the GoodKnight 420E is one of the smallest and lightest Auto-CPAP systems on the market and with its advanced Auto-Sensing technology it's also one of the smartest.

The 420E detects changes in breathing, snoring and sleep patterns that occur throughout the night and it adapts its functions to deliver the lowest amount of pressure needed for effective and comfortable therapy. In addition, the 420E records up to 200 sessions of compliance data, has a wide pressure range, adjustable ramp, ultra-quiet operation, and is made of durable materials suited for travel or home use.


  • Small and convenient (Under 2 pounds)
  • Ultra-quiet operation (Maximum sound level at 10cm H2O = 31 dBA)
  • Wide pressure range (4 to 20 cm H20)
  • Adjustable Ramp Time (0 to 30 minutes in 5-minute increments)
  • Auto sensors detect and react to apnea, hypopnea and snoring events
  • Dectect and reacts to inspiratory flow limitation
  • Adjustable pressure calibration
  • Durable construction
  • Universal Power Supply - Automatic voltage regulator and international power supply for operation on AC currents from 110 to 240 without adjustments. (Plug adapter may be needed for operation outside of the United States.)
  • Automatic leak and altitude compensation
  • Breathing compliance meter


  • For Reference:Discontinued 10.01.2009
  • Manufacturer:Puritan Bennett
  • Part Numbers:Y-GK420E-NA
  • In The Package:GoodKnight 420E Auto-CPAP Machine, Starter Filter, Durable Nylon Carrying Case, 6 Foot Patient Tube, Printed Manuals, Power Cord (For US Power Supply), 2-Year Manufacturer's Warranty. Heated Humidifier also included depending on package selected.
  • HCPCS Codes:E0601
  • FSA Eligible:Can be purchased with FSA Cards
Dimensions & Weight
  • Auto-CPAP = 5.6" x 2.9" x 7.7" (142mm x 75mm x 195mm)
  • Auto-CPAP = 1.54 lbs (760 g)
  • Auto-CPAP with HUMIDIFIER = 6.7" x 3.7" x 11" (170mm x 95mm x 280mm)
  • Auto-CPAP with HUMIDIFIER= 3.3 lbs (1497 g)

Performance & Power
  • Pressure Range = 4cm to 20cm H20 (±1 cm H20)
  • Pressure Adjustment = 0.5cm H20
  • Power Consumption = 20 VA
  • Universal Power Supply = Input Range 100-240 V, 50-60 Hz
  • Ramp Time = 0 to 30 minutes (5-min increments)
  • Ramp Start Pressure = 4 to CPAP Pressure
  • Altitude Compenstation = 0 to 7,874ft/2400m
  • Minimum Sound Level = 25.1 dBA
  • Maximum Sound Level = 31 dBA at 10cm H20