A 2013 study that looked at the ability of homemade masks made from cotton T-shirt material to prevent ... "People that would normally wear a mask, like cancer patients going to their chemo ...

Still, using multiple layers of high-thread-count cotton is preferable to face coverings made from a single dishcloth or cotton T-shirt. "A cotton mask offers far less protection than a surgical ...

Chu Kai-pong is first person to be convicted under Article 23, the China-ruled city’s tough new national security law.