Feature

●PFE (particulate filtration efficiency) ≥99% (0.1μm)
●BFE (bacterial filtration efficiency) ≥99% (3.0μm)
●VFE (virus splash filtration efficiency) ≥99% (3.0μm)
●Size: Approx. 3.7 x 5.7 inches (9.5 x 14.5 cm); Quantity: 50 sheets
●Material: Body: Non-woven polypropylene, Nose Fit: Resin, Ear Straps: Polyurethane (flat strings)


Description

PFE (particulate filtration efficiency) ≥99% (0.1μm) BFE (bacteria filtration efficiency) ≥99% (3.0μm) VFE (virus spray filtration efficiency) ≥99% (3.0 μm) Size: Approximately 3.7 x 5.7 inches (9.5 x 14.5 cm) Quantity: 50 pieces; Material: Body: 50 pieces; Material: Body: Non-woven polypropylene; Nose fit: Polypropylene.