English | 2020 | ASIN: B086DCMFZN | 25 Pages | EPUB | 0.5 MB
Medical face masks are used to avoid or reduce the risk of virus transmission or bacterial contamination or possible infections that are transmitted through the air. The medical mask offers protection against external pathogens. The face mask blocks some of the droplets that people secrete into the environment when they talk, cough, and sneeze.
Download:
http://usafiles.net/33VD/DIY_HOMEMADE_MEDICAL_FACE_MASK_(2).epub