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(Total 1 Products for Factory Wholesale Breather Valves)
One Way Breath Valve for Face Mask
One Way Breath Valve for Face Mask The working principle of the breathing valve is that the positive pressure of the exhaust gas blows open the valve sheet during exhalation, so as to quickly discharge the exhaust gas in the mask and reduce the stuffy feeling when using the mask. The negative pressure during...
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.