N95 niosh-approved masks standard

Submitted by abc123 • September 29, 2020

The appearance of COVID-19 makes face masks a daily necessity in our lives. For face masks, we often hear n95 face masks, kn95 face masks, and surgical face masks. There is an approved standard for n95 face mask in the United States, do you know?What are N95 NIOSH-approved masks?articulate respirators are designed to help reduce the wearer’s exposure to airborne particulate hazards.