This theory of masks posits them as a beneficial shield from the ills of the world, its judgment and retribution. See, for ...

CDC director says face masks may offer more protection against COVID than a vaccine. Here's what other experts say. By Caitlin O'Kane ...

Face masks aren't as effective if you don't wear them properly. Here's what you need to know to protect yourself and your community from COVID-19.

Face mask performance and protection Face masks are evaluated based on two main properties: filtration efficacy and breathability. Each property is tested on two levels.

Face masks have been widely used throughout the COVID-19 pandemic to protect people from catching the virus. Researchers discovered certain double masking combinations and fit modifications offer ...

This week, the city of Chicago is distributing 1.5 million KN95 face masks across the city as COVID-19 cases continue to rise from the omicron variant, according to a report by WMAQ.

Should you wear a face shield, or is a mask enough protection against COVID and its variants like Omicron and Delta? We had experts weigh in to compare effectiveness of your options.

Tomas Solano, Chuanxin Ni (倪传鑫), Rajat Mittal, and Kourosh Shoele , "Perimeter leakage of face masks and its effect on the mask's efficacy", Physics of Fluids 34, 051902 (2022).

Let’s face it: Even as more people get vaccinated against Covid-19, everyone but small children will still need to wear a face mask for the foreseeable future.

Accountability and privacy are on a collision course that raises the stakes for the role of face-covering in modern life.