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This is how often you should wash your cloth face mask.

USA TODAY

As health officials continue to urge people to wear masks in public, a dentist in Canada has shared a genius hack for making face masks fit better.

Olivia Cui typically shares dental health tips and offers entertaining insight on what its like working as a dentist on TikTok. But late last month she posted a 60-second clipshowing that with loose-fitting surgical masks “the sides of your face are left very exposed to the outside.”

To make the mask fit more snugly, Cui folds the mask in half length-ways, ties a knot with the earloops on each side close to the mask, opens the mask, and tucks in the openings on the sides underneath the earloops.

“In absence of N95s, this might be a good alternative,” Cui said. 

On TikTok, videos of celebrities, athletes and influencers encouraging