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The Wokring Method and Role of Breathing Valve

The Wokring Method and Role of Breathing Valve

Jul 27, 2020

The positive pressure of the exhaust gas blows open the valve during exhalation to quickly remove exhaust gas from the body and reduce the sultry feeling when using the mask. The negative pressure during inhalation will automatically close the valve to avoid inhaling pollutants from the external environment.


air valve