Engineers have developed a robot that can detect whether people are wearing a mask to guard against COVID-19 and, if not, politely remind them to put one on.

A South Korean company has invented a battery-powered filtered face mask designed to reduce annoying problems associated with conventional designs, such as breathing difficulties and fogged-up glasses ...

The virus-fighting startup Singletto has U.S. Department of Defense support, closed a $10 million round, and is selling its ...