GoodKnight 425 BiLevel - DISCONTINUED


1 Total Reviews

View GoodKnight 425 BiLevel Parts

  • For Reference:Discontinued 10.01.2009
  • Brand:Puritan Bennett

The GoodKnight 425 BiLevel offers an amazingly small, compact, and quiet choice in treating obstructive sleep apnea for people who require bi-level positive pressure. As the world’s smallest, lightest bi-level device, the GoodKnight 425 won’t crowd the nightstand and is easy to pack for travel, making therapy a snap. Ultra-quiet operation, adjustable ramp time, a wide presure range, and durable construction all mean that the GoodKnight 425 will provide many nights or restful sleep -- now and for years to come.


  • Small and convenient (Under 2 pounds)
  • Ultra-quiet operation (Maximum sound level at 10cm H2O = 31 dBA)
  • Wide pressure range (3 to 25 cm H20)
  • Adjustable Ramp Time (0 to 30 minutes in 5-minute increments)
  • 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
  • Hour and compliance meters help track compliance
  • FlowSens Technology - The GoodKnight 425 incorporates Puritan Bennett's patented FlowSens technology which helps optimize breathing comfort to reduce the sensation of exhaling against incoming flow


  • For Reference:Discontinued 10.01.2009
  • Manufacturer:Puritan Bennett
  • Part Numbers:Y-GK425-NA
  • In The Package:GoodKnight 425 BiLevel 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:E0470
  • FLEX SPENDING:Can be purchased with FSA & HSA Cards
Dimensions & Weight
  • BiLevel = 5.6" x 2.9" x 7.7" (142mm x 75mm x 195mm)
  • BiLevel = 1.68 lbs (760 g)
  • BiLevel with Humidifier = 6.7" x 3.7" x 11" (170mm x 95mm x 280mm)
  • BiLevel with Humidifier = 3.3 lbs (1497 g)

Performance & Power
  • Pressure Range = 3cm to 25cm H20 (±1 cm H20)
  • Power Consumption = 20 VA
  • Universal Power Supply = Input Range 100-240 V, 50-60 Hz
  • Minimum Pressure Levels = 3cm IPAP, 3cm EPAP
  • Maximum Pressure Levels = 25cm IPAP, 20cm EPSP
  • Pressure Adjustment = 0.5cm H20
  • Ramp Time = 0 to 30 minutes (5-min increments)
  • Ramp Start Pressure = 3 to IPAP Pressure
  • Altitude Compenstation = 0 to 7,874ft/2400m
  • Minimum Sound Level = 25.1 dBA
  • Maximum Sound Level = 31 dBA at 10cm H20
  • GoodKnight 425 Bi-Pap


    I no longer have insurance and my old machine had stopped working. Looking for a better priced option, I found your web site and this unit. I ordered it on Tuesday afternoon and it was delivered to my home Friday afternoon. Outstanding service. The unit itself is smaller, quieter than my old Respironic model. Over the past ten years I have had two Respironic units brought by the insurance company and this unit to me is superior to those. I am anticipating a favorable relationship with your company. Just remember you have set a high standard. Thank you for your rapid service to my need.
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