Kn95 mask dustproof industrial protective articles are breathable. In summer, adult thin masks are dust-proof, haze proof, breathable and sp

Kn95 is a five layer protective mask, with two layers of melt blown layer. The protective effect reaches more than 95%. It can effectively prevent dust, haze and spray, and has three-dimensional protection and ventilation. There is spot delivery in 3-7 days, free of freight. Good price!