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GoodKnight 425 ST Bilevel Machine

BY Puritan Bennett Item #Y-GK425ST

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GoodKnight 425 ST BiLevel Machine Overview

The GoodKnight 425ST BiLevel machine is everything you need to monitor therapy effectiveness and comes with new FlowSens Technology. Designed for both daily use or small enough to travel, the 425ST has a Backup Rate that helps manage breathing. The FlowSens technology, Backup Rate and software are the most complete solution on the market for treating sleep apnea. does not currently sell any BiPAP ST Machines, so we can't recommend an equivalent machine at this time.

This is a BiLevel machine which differs from a CPAP in that it switches back and forth between two pressure levels, one higher and one lower, rather than providing one continuous pressure level. The pressure upon inhalation is higher to hold the airway open, but as the user exhales, the pressure drops to a preset lower level. The GoodKnight 425ST BiLevel comes with FlowSens technology that helps optimize therapy effectiveness through controlled breathing. By allowing CPAP users to set the device's sensitivity, the flow-based detection system compares CPAP user data with a delayed air flow to trigger inhalation and exhalation breaths. The FlowSens technology provide a unique custom device can compensate air flow on a breath-by-breath basis.

A BiLevel machine responds well to people with very high CPAP pressure needs, weak chest wall muscles, lung disease or other health problems that keep them from being able to exhale against a CPAP pressure. The Puritan Bennett GoodKnight 425ST model comes with a Backup Rate that will initiate a cycling process of exhalation to inhalation if the CPAP user's breathing rate falls below the prescribed ratio.

  • Smallest, lightest Bilevel, BiPAP or VPAP
  • SilverLining software compatible
  • International power supply
  • Direct DC operation
  • Automatic altitude compensation
  • Two washable, reusable pollen filters
  • 2 year manufacturer warranty against defects.

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  • Basic Features

    Puritan Bennett
    Philips Respironics
    BiPAP ST
    BiPAP Auto
    2 Years
    2 Years
    2 Years
    Sound Level
    31 dB
    25.8 dBA
    26.6 dBA
    Manuals Included
    Patient/Quick Setup
  • Dimensions

  • Humidifier Features

  • Pressure Features

  • Power Features

  • Software Features

  • Additional Features

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