What is already known about this topic? Face masks or respirators (N95/KN95s) effectively filter virus-sized particles in laboratory settings. The real-world effectiveness of face coverings to prevent ...

ROCKFORD (WREX) — The type of protective face mask you wear can make a difference when you're out and about. The effectiveness of different types of masks are becoming a crucial question as COVID-19 ...

When the Centers for Disease Control and Prevention first recommended that everyone wear a cloth mask in public in April 2020, there weren’t enough highly protective N95 respirators to go around. For ...

Wearing a mask is one way to reduce the spread of COVID-19. There are many types, including surgical masks, cloth masks, and respirators. SARS-CoV-2, the virus that causes COVID-19, usually transmits ...