3M 8210 Disposable P2 & N95 Respirator Mask - 20 Masks/Box8210 can also be used in certain applications against some bio aerosols. such as, influenza virus Lightweight construction for added comfort that may increase wearer time Mould nose clip to the wearer's nose shape to help reduce eyewear fogging and for a better seal and fit Made from 3M Advanced Electret Filter Material for effective filtration with low breathing resistance Does not contain components made from natural rubber latex P2 rated filtration