ABM Respiratory Care BiWaze Cough Assist System Certified Pre Owned BC20113 This helps alleviate discomfort and 101044815 This helps alleviate discomfort and irritation on the bridge of the nose that more traditional masks can cause That means fewer components that come in contact with you as you sleep so that you can enjoy comfortable therapy — all night OscillationsThe oscillation therapy feature delivers an oscillatory therapy based on frequency and amplitude settings 5″ H) Weight 9lbs (4kg) including internal battery Presets Up to 10 Modes Automatic and Manual Maximum positive pressure 70 cm H20 Maximum negative pressure 70 cm H20 Maximum pause pressure 15 cm H20 Inspiratory time 0 – 5 seconds (auto mode only) Expiratory Time 0 – 5 seconds (auto mode only) Pause Time 0 – 5 seconds (auto mode only) Inspiratory Flow Low