Researchers have developed a way to use a simple home aroma diffuser to test whether N95 and other types of sealing masks, such as KN95 and FFP2 masks, are properly fitted, a result which could be ...

The respiratory protection standard includes a requirement for a medical clearance for required use of tight-fitting respirators and for some specific respirators even with voluntary use. In my ...

Researchers studying the effectiveness of different types of face masks have found that in order to provide the best protection against COVID-19, the fit of a mask is as important, or more important, ...