"The coronavirus is airborne, so stopping its spread requires more focus on ventilation, air filtering and better masks, like N95s or KF94s, or surgical masks, preferably with braces that make them fit better."
Surgical
"The coronavirus is airborne, so stopping its spread requires more focus on ventilation, air filtering and better masks, like N95s or KF94s, or surgical masks, preferably with braces that make them fit better."