KN95 Safety Mask (10-Pack / $3.29 each)The KN95 is an industry standard for respiratory equipment which has the intended effectiveness of filtering 95% of particulates greater than . 3 microns. KN95 masks are considered respiratory protective equipment that conform to GB2626 2006 performance standards. They can used all year in any weather and can help keep you safe from viruses, fog, smog, dust, smells, vehicle exhaust, air pollution, allergens, and humidity. These masks are manufactured