Auto S mode automatically adjusts the exhalation pressure (EPAP) based on your breathing pattern while maintaining the necessary inhalation pressure (IPAP). This improves comfort on exhale compared to fixed-pressure CPAP or standard BiPAP.

In the UK, no prescription is required to purchase this device. However, for best results and safety—especially if you have diagnosed sleep apnea or other respiratory issues—it’s advised to consult a sleep specialist or your GP to set correct therapy parameters.

The OEM Auto S BiPAP supports multiple modes including CPAP, Auto, S, T, ST and Auto-S. The typical pressure range is around 4-30 cmH₂O for inhalation (IPAP) with adjustable EPAP, plus features like expiratory relief (EPR), leak compensation, and backup rate controls for personalized comfort.

Most users feel more comfortable within the first few nights to a week. Features like ramp-up, auto pressure adjustments, and humidification help smooth the transition, reducing discomfort and improving sleep quality over time.

• Wash mask, tubing, and humidifier chamber (if present) with mild soap and warm water; rinse and air dry thoroughly. • Replace filters as directed in the user manual. • Wipe down the external surfaces with a soft, dry cloth to avoid dust buildup. • Use distilled water and refill daily if using humidification. Proper maintenance ensures hygiene, comfort, and long performance of the device.