(CNN) -- The US Centers for Disease Control and Prevention updated its mask information for the American public on Friday, including clarifying that certain types of masks and respirators offer more ...

KF94 masks are Korean-standard masks tested and regulated by the Korean Ministry of Food and Drug Safety, said Kelly Carothers, the director of government affairs and sustainability at Project N95, ...

P95 and N95 are rating classifiers for masks manufactured to keep people from inhaling dust and other small particles in unsafe environments.

New research shows that while many cloth and medical masks fall short against tiny airborne particles, simple hacks like overmasking or using braces can dramatically improve your protection, yet only ...