Double Masking: How, Why, and When You Should Double Up on Face Masks

Double masking is wearing one mask on top of another. It helps improve the fit and filtration of your mask. Learn when to double up.

How to Double Mask Correctly - The New York Times

Masks and Respirators

Double masking for COVID-19: CDC recommends wearing two masks at once - CNET

Doubling up on masks doubles down on protection, WVU experiment confirms, WVU Today

CDC updates: Double masking and best mask guidelines

IT'S TIME FOR DOUBLE MASKING! - MPS Young Pharmacist Chapter

What are the ill effects of wearing masks for too long hours? - Quora

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