There are a few things to avoid in a mask, according to both Mora and the CDC: First, don't use an N95 mask ... In terms of face shields, Mora doesn't believe they're absolutely necessary ...

Cloth face masks ... in the space between masks and faces. Onishi tested a range of masks: those made from cloth, non-woven masks, dust masks which met the N95 standard and other types, even ...

To remedy the N95-standard face mask shortage at Japan hospitals caused by the COVID-19 pandemic, a medical institution and three companies in the Kansai region have teamed to develop and produce ...