Everything you need to know about masking up against Omicron, from double masks to beards

Experts are recommending upgrading to N95 or KN95 masks to protect against Omicron, but questions remain about alternatives such as double masking, and other obstacles such as cost and facial hair. Katy Tur sat down with Dr. Vin Gupta, Critical Care Pulmonologist to answer your burning questions.

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