cmd@tablelinens-cmd.com +86-139-20581424
How the breathing valve works to protect us?

How the breathing valve works to protect us?

Oct 22, 2020

When inexhalation, the positive pressure of the discharged gas will blow the valve plate open to quickly remove the waste gas from the body and reduce the muggy feeling when using the mask, while on inhalation the negative pressure will automatically close the valve to avoid inhaling pollutants from the external environment. 

breather valve