wholesales dust-proof and haze-proof pm2.5 breathing valve mask household protective products masks

article number material polyurethane regular color black weight 37 (g) packaging method individual packaging mask style hanging ear breathing valve device yes protection level filtration effect is good housing material polyurethane function anti-dust, anti-haze, anti-vehicle exhaust, second-hand smoke, anti-pollen application range dust-proof, anti-haze, anti-vehicle exhaust, second-hand smoke, anti-pollen size 28 * 13cm