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 ...

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 ...

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 ...