Easy to carry and efficient filtration. Effective protection against dust, haze, bacteria and droplets, etc. 4-Layer protection: non-woven fabric, flexible moderate thickness, adsorption particles, double layer electrostatic filter, highly effective barrier particles. Ergonomic design: Comfortable to wear. Soft metal fixation strip for best seal between nasal beam and mask. 

Safety KN95 Disposable Face Mask 5-Pack PM2.5 Breathable 4-Layer Cover