Home :: Shop By Manufacturer :: All Puritan Bennett Products
Home :: CPAP and BiPAP Machines :: BiPAPs & Bi-Level Machines
Home :: CPAP and BiPAP Machines
Home :: CPAP and BiPAP Machines :: BiPAPs & Bi-Level Machines :: Puritan Bennett
Home :: Shop By Manufacturer :: All Puritan Bennett Products :: Puritan Bennett Machines

Puritan Bennett Goodknight 425ST Bi-Level with Humidifier

SKU CSU-Y-GK425ST-NA/H20

The GoodKnight 425ST Bi-Level machine and heated humidifier by Puritan Bennett offers patients who require bi-level therapy with a back-up ventilation rate a compact, quiet choice in treating Obstructive Sleep Apnea or related sleep breathing disorders. As the world's smallest, lightest bi-level machine, the GoodKnight 425ST and heated humidifier will not crowd the nightstand and is easy to pack for travel, making complying with prescribed therapy a snap for patients. Its ultra-quiet operation also helps ensure a peaceful sleep for patients and sleeping partners alike.
The Puritan Bennett Goodknight 425ST weighs in at only 1.5 lbs, making it an extremely popular choice for individuals who travel.


  • Convenient small size (weighs only 1.5 pounds and measures 3 inches high, 5.5 inches wide, 8 inches deep).
  • Adjustable ramp time for improved patient comfort.
  • Optional heated humidifier with very small footprint helps meet greater range of patient needs.
  • Hour and compliance meters help track patient compliance.
  • Optional Silver Lining 3.6 Data Management Software provides compliance information and other patient data in easy-to-format reports.
  • Travel-friendly features such as automatic altitude compensation and optional cigarette lighter adapter or portable battery pack make therapy compliance easy for patients
  • The 425ST includes a back-up ventilation rate this is needed by certain complicated cases of Obstructive Sleep Apnea - If you require and ST device, it will be indicated on your prescription or sleep study.
  • Includes a heated humidifier to ensure comfortable therapy for the user.


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:E0471
    E0562
  • Heated Humidifier:Included
  • Included In Box:Bi-level ST machine, heated humidifier, tubing, disposable filters, instruction manual, and carrying case
  • Integrated Battery:NO
  • Manufacturer:Puritan Bennett
  • Mask Off Alert:NO
  • Optional Software:Silver Lining 3.6
  • Prescription Required:YES
  • Pressure Range:4-25 cm/H2O
  • Ramp:0-30 Min. (5 Minute Intervals)
  • Warranty:2 years for machine, 1 year for humidifier
  • Weight:1.5 lbs (machine only)
  • Product Condition:NEW



Customer Reviews


Write A Review
Click here to take our satisfaction survey!

CPAPSupplyUSA.com
US HEALTHCARE SERVICES, INC.
12730 Spectrim Lane, STE G
Midlothian, VA 23112-2998
USA 		Telephone: 1.866.560.CPAP (2727)
Fax: 1.804.353.4809
Information: info@cpapsupplyusa.com
Website Questions: web@cpapsupplyusa.com