kn95 mask breathing valve accessories black white PP material waterproof breathable valve one-way plastic exhaust valve
Mask breathing valves is designed for people's health. It is used to prevent the visible or invisible substances in the air that are harmful to the human body from being filtered, so as not to bring
Description
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How they work?
Mask breathing valves positive pressure of the exhausted gas during exhalation will blow open the valve to quickly expel the waste gas in the body and reduce the stuffiness when using the mask. The negative pressure during inhalation will automatically close the valve to avoid inhaling pollutants from the outside environment.
Application Description
Mask breathing valves are mainly used in situations where they need to be worn for a long time, such as industrial working environments, construction sites, medical care, and epidemic prevention and control. They help reduce moisture and heat during breathing, improve wearing comfort, and are suitable for activities that require high-intensity breathing.
Easy installation
The upper cover, the lower cover and the rubber pad of the breathing valve are integrated, which is easy to install. Put the rubber pad on and align with the buckle.
Humanized design
Easy breathing, smooth breathing, single breathing, humanized design.
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