Valve masks are a type of N95 mask with a one-way valve. The novel coronavirus pandemic brought society a new definition of normal which now includes wearing face masks. While the benefits of masks ...

Mask valves might make you breathe a little easier, but when it comes to fighting COVID, wearing one is a bad move. (Unsplash/) When shopping for face masks to prevent the spread of COVID-19, you ...

A new flow visualization study from the National Institute of Standards and Technology (NIST) starkly demonstrates why face masks with exhalation valves are not effective for slowing the spread of ...

They make breathing in a mask more comfortable, but face coverings bearing filter valves have been banned from military health facilities and increasingly at bases as well, under guidance issued by ...

The Delta variant has become the dominant strain of COVID, now accounting for more than 93% of all cases in the U.S., mostly among the unvaccinated population. The Centers for Disease Control and ...

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 ...