If you only have a single-layer or loose-fitting mask, it may be smart to wear two at once. To double up, wear one cloth mask over another, or wear a cloth mask over a surgical mask. Experts have long ...

With the delta variant surging and health officials urging indoor mask use — and requiring masks indoors for many Bay Area locations — you've likely pulled out ...

More than 20 states now require people to wear face coverings in public. As more states make wearing face coverings in public mandatory, many wonder if masks with filters are more effective. "Any ...

To protect yourself from the Omicron COVID-19 variant, which is more than twice as contagious than the Delta variant, researchers, public-health experts, and infectious-disease doctors now suggest ...

Catherine Clase is a member of the Cloth Mask Knowledge Exchange, a research and knowledge translation group which includes industry stakeholders. Industry stakeholders contribute to the Cloth Mask ...