Puritan Bennett Goodknight 420E Auto CPAP and Humidifier

SKU CSU-Y-GK420ENA-H2O

Please note: The Puritan Bennett 420e is currently out of stock. Orders placed for the 420e will not be shipped until new machines are received. Please call us with questions.

The Puritan Bennett Goodknight 420 CPAP Series includes the 420E Auto CPAP model and heated humidifier, so patients who require auto CPAP therapy can enjoy the advantages of the world's smallest and lightest continuous positive airway pressure devices. The Goodknight 420E Auto CPAP with Heated Humidifier records up to 200 sessions of compliance data and includes other important features from the Goodknight 420S device. The auto CPAP function automatically adapts to constantly changing pressure needs of each individual throughout the night.


  • Wide pressure range (4 to 20 cm H20).
  • Ultra-quiet operation.
  • Adjustable pressure calibration.
  • Durable construction.
  • Automatic voltage regulator.
  • Altitude compensation feature.
  • Optional D/C power supply.
  • Automatic leak compensation.
  • Adjustable ramp start pressure.
  • Breathing compliance meter.
  • Two-year warranty.
  • Includes the 420 Series Heated Humidifier to increase the comfort of your CPAP therapy.

Please Note:This machine uses pressure line CPAP tubing. Standard tubing will not work with this machine.


For additional information on this product (user manuals, manufacturer's info, articles, and forum posts), please visit our Product Resources area in our CPAP Community.


  • 110 Voltage:YES
  • 220 Voltage:YES
  • Altitude Adjustment:Auto
  • Can Use A Battery?YES
  • Data Card:NO
  • HCPCS Reimbursement Code:E0601, E0563
  • Heated Humidifier:Included
  • Included In Box:Auto CPAP machine, AC Power Cord, tubing, filters, instruction manual, carrying case, and heated humidifier
  • Integrated Battery:NO
  • Manufacturer:Puritan Bennett
  • Mask Off Alert:NO
  • Prescription Required:YES
  • Pressure Range:4-20 cm/H2O
  • Weight:1.54 lbs
  • Warranty:2 year for machine, 1 year for humidifier
  • Ramp:0-30 Min. (5 Minute Intervals)
  • Optional Software:Silver Lining 3.6 Software
  • Product Condition:NEW



List Price $1,088.25
Your Price $550.00
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