The following is about Adult Mask related, I hope to help you better understand Adult Mask.
Civil sanitary masks are used to filter the air entering the nose and mouth. Civil sanitary masks prevent harmful gases, odors and water droplets from entering and leaving the wearer's nose and nose. Civil hygiene masks are mainly divided into cotton masks, non-woven masks, polymer masks, activated carbon powder filter masks, and activated carbon fiber felt masks.
FFP2 masks are one of the European mask standards EN149: 2001. FFP2 masks are used to adsorb harmful aerosols, including dust, fume, mist droplets, toxic gases and toxic vapors, through the filter material and block them from being blocked Inhale.