“Start by wiping off excess product on the rim of the tube to get an even application,” Kassajikian advises. From there, ...

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 ...

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.