We're Happy To Help - Call 888-505-0212
Why Shop DirectHomeMedical.com? Free Shipping Over $99 View Shopping Basket

GoodKnight 425ST BiLevel ST Machine (DISCONTINUED)

  • Discontinued April 2009 - Information for Reference Only

We stock a wide range of parts, filters and accessories. Click here to view replacement parts for this product.

Puritan Bennett's GoodKnight 425 Bi-Level provides a compact, quiet choice in treating obstructive sleep apnea for patients who need bi-level positive pressure therapy. As the world's smallest, lightest bi-level, the GoodKnight 425 won't crowd the nightstand and is easy to pack for travel.

The GoodKnight 425ST Bi-Level® Device 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 complying with prescribed obstructive sleep apnea (OSA) therapy a snap for patients.

The GoodKnight 425ST device provides the added benefit of a backup rate that delivers a machine-triggered breath in the event of apnea or hypopnea.

Ultra-quiet operation, adjustable ramp time, a wide presure range, and durable construction all mean that the GoodKnight 425ST will provide OSA patients many nights or restful sleep -- now and for years to come.


  • Small and convenient (Under 2 pounds)
  • Adjustable ramp time for improved comfort
  • Wide pressure range (3 to 25 cm H20)
  • Adjustable pressure calibration
  • Durable construction
  • Automatic voltage regulator and international power supply for operation on AC currents from 110 to 240 without adjustments. (Outlet adapter may be needed for operation outside of the United States.)
  • Automatic altitude compensation adjustment
  • FlowSens Technology - The GoodKnight 425ST incorporates Puritan Bennett's patented FlowSens technology which helps optimize breathing comfort to reduce the sensation of exhaling against incoming flow



Earn points for every dollar you spend. Cash in points you've earned for big discounts on future orders. Learn More About Customer Rewards

Manufacturer Puritan Bennett
Part Number(s) Y-GK425ST-NA
HCPCS Insurance Code E0472

GoodKnight 425ST BiLevel ST Machine (DISCONTINUED)

Ultra Fine Filter for GoodKnight 420 CPAP & 425 BiPAP Machines - 1 Pack
AG Industries - AG41395004
5 out of 55 out of 55 out of 55 out of 55 out of 5
Foam Pollen Filter for GoodKnight 420 CPAP & 425 BiPAP Machines - 1 Pack
AG Industries - AG41395002
3 out of 53 out of 53 out of 53 out of 53 out of 5
Single Strap Chinstrap for CPAP Therapy
ResMed - 16015
4 out of 54 out of 54 out of 54 out of 54 out of 5
6 Foot 'Standard' Hose Tubing for CPAP & BiPAP Machines
DirectHomeMedical - 06TUDHM
M-Series BiPAP Auto BiLevel Machine (DISCONTINUED)
Philips Respironics - DS700S (BiPAP), DS700HS (BiPAP with Heated Humidifier)
> Click Here To View Compatible Parts


This product has not yet been reviewed.

View Popular Sleep, Oxygen & Asthma Therapy Search TermsDiscontinued Items


We Ship UPS We Ship US Postal Service MasterCard Accepted American Express Accepted Discover Card Accepted PayPal Accepted

DirectHomeMedical.com offers online support through our website, live chat and toll free support during normal business hours, and email support 24-hours a day. Please contact us if you have any questions about our services or the products we sell. DirectHomeMedical.com is authorized and approved, by the manufacturers we represent, to sell and ship products to end-users residing in the United States, not to other third parties or businesses. A prescription is required for the purchase of certain products on this site. All products offered are sourced directly from the original equipment manufacturers or their representatives. PROPOSITION 65 WARNING: Some products on this site may contain a chemical known to the State of California to cause cancer, birth defects or other reproductive harm. COPYRIGHTS: Selected product images and descriptions used throughout this site are used with the permission of the copyright holders. All ResMed Product Images © ResMed. All Philips Respironics Product Images © Philips Respironics. All Fisher & Paykel Healthcare Product Images © Fisher & Paykel Healthcare. Site Design & Content Copyright © 2004-2016 DirectHomeMedical.com. Respironics recommends that new patients purchase their devices, masks and initial accessories from a homecare company that can provide an individualized patient equipment set-up, clinical and after-sale support, and a program to assist patients with therapy success. All products and services advertised on this site are provided by DirectHomeMedical.com or its designates.
Privacy Policy & Terms of Use | Return & Exchange Policy | Call Toll Free 888-505-0212 | Fax 603-386-6277