Feature●* Uses high-quality filter with over 99% filtration efficiency. * BFE (bacterial filtration efficiency) ≥99% PFF (particle filtration efficiency) ≥99% VFE (particle filtration efficiency) ≥ 99% VFE (virus filtration efficiency) ≥ 99%●Specifications: 3 layer type H 7.7 x W 6.9 inches (195 x 175 mm) medical grade materials: polypropylene non-woven fabric; nose piece: resin earstring: polyurethane●*Please rest assured that this is not a cheap or inferior type or a general non-woven mask.●*The surgical mask is marked RI under the side JAN code even in the same package.●*The outer box does not describe the surgical mask because of the package design, but please rest assured that the mask will be a genuine surgical mask.Description
* Uses high-quality filter with over 99% filtration efficiency. * BFE (bacterial filtration efficiency) ≥99% PFF (particle filtration efficiency) ≥99% VFE (particle filtration efficiency) ≥ 99% VFE (virus filtration efficiency) ≥ 99% medical use.