Filtering facepiece respirators (FFR) with exhalation valves, as well as a surgical mask or an unregulated face covering, can reduce a wearer’s aerosol emissions, according to a report released on ...

ATLANTA — There is one mask that's becoming popular online, but medical experts said it does more harm than good. Masks with what's called an exhalation valve promise better comfort than traditional ...

Forbes contributors publish independent expert analyses and insights. I write about the brain and the body but sometimes other things. New videos show how the N95 masks with an exhalation valve ...

Credit: Getty Images. An exhalation delivery system appears to more effectively apply topical steroids to nasal polyps located in the ostiomeatal complex. This article is part of MPR’s coverage of the ...

Please provide your email address to receive an email when new articles are posted on . Many e-cigarette and hookah smokers exhale aerosols through the nose, which may increase risk for lung ...