1Suitable for most respiratory care, respiratory tract, trachea, alveoli and lower respiratory tract, etc. 2One-button operation is simple and convenient: multi-gears meet the needs of various groups of people. 3Low noise is more comfortable: less than 65 decibels, reducing noise pollution. 4Triple filter cotton can filter all kinds of harmful gases in the air. 5Anti-seismic rubber pad, silica rubber pad has good resilience and reduces resonance caused by machine.
