3M - 9513 懸浮微粒防護口罩 KN95（5片裝 x 3)

High-density, high-efficiency protectionUnique three-dimensional 3D contour, specially designed for Asian facesThe filtration efficiency of non-oily fine suspended particles is ≧95%This respirator can help reduce inhalation exposure to certain types of non-oil airborne particles, such as dust mite debris, airborne pollen, smog particles, car exhaust, and PM2.5 when used as directed4-layer filter structure