3 Ply Sterile Medical Type IIR Disposable Masks. ASTM F2100. Blood Spatter Resistant Sterile Disposable surgical face mask, Type IIR, hydrophobic, blue, 3-ply, elastic ear loops, pliable plastic-coated nose piece, 3-ply (PP spunbond inner and outer layers, PP meltblown filter layer), Latex free, fiberglass free, Bacterial Filtration Efficiency (BFE): 98%, Breathability (differential pressure Pa/cmý): < 60, Splash resistance.