The EMST150 functions like a hand-held “weight machine” for your respiratory system. It uses a calibrated pressure relief valve to apply a resistive load to expiratory muscles, stimulating strength gains much like traditional strength training does for skeletal muscles. Its adjustable pressure setting (30–150 cmH₂O) allows users to measure progress and increase challenge over time. Compact, lightweight, and portable, it can be used at home, at the gym, or while travelling.

It strengthens the expiratory muscles used in breathing, coughing, swallowing, and speaking, supporting respiratory function for aged care residents and NDIS participants with neurological conditions. Its adjustable resistance allows progress to be tracked over time.