Protective Face Mask, Disposable Masks, 50 Pack

Guaranteed quality laboratory tested performance you can trust bacterial filtration efficiency, ≥ 98.8% particulates filtration efficiency, ≥ 98% differential pressure, 32 mm h20/cm2 resistance to penetration, mmhg flame spread, class i outer barrier - repels liquid face barrier - absorbs liquid inner barrier - repels liquid middle barrier - repels liquid breathable comfort with adjust nose bridge for a perfect fit.