Copper (Cu29) Mesh lined Cotton face masks . 0.55 mm perforated Pure Coppr Mesh face mask has a built in pocket for a PM 2.5 (pm = particlate matter) filter fabric , face masks are hand washable , 1/4 " blk elastic ear strap.
Copper (Cu29) Mesh lined Cotton face masks . 0.55 mm perforated Pure Coppr Mesh face mask has a built in pocket for a PM 2.5 (pm = particlate matter) filter fabric , face masks are hand washable , 1/4 " blk elastic ear strap.
