This is itself an issue, but our research also discovered another worrying thing: People aren’t very good at assessing whether their mask fits. Frequently, they use a self-assessment method to check ...

Please provide your email address to receive an email when new articles are posted on . Nearly 100% of N95 masks pass fit tests after 3 years, suggesting annual tests are not necessary. Moving to ...

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