Dr. Olivia Cui before and after doing her face mask hack.

  • A Canadian dentist has shared an ingenious hack to make a standard face mask fit better and work much more effectively.
  • Dr. Olivia Cui, DMD, posted the trick in a TikTok video which has now been viewed 3.4 million times.
  • All it takes is a fold and a couple of knots.
  • The video has wowed people around the world, and Katie Couric and Kristen Bell have both shared it.
  • Visit Business Insider's homepage for more stories.

A dentist has shared an ingenious and simple hack to make a standard face mask fit better and work more effectively, and the video has been watched 3.4 million times on TikTok.

Canadian dentist Dr. Olivia Cui, DMD, showed how you can close the gap around the side of your mask in a matter of seconds.

All you have to do is fold the mask in half length-ways, tie a knot in each strap as close to the mask as possible, open the mask out, tuck the opening in underneath the ear loops, and you'll have a much more effective and better fitting mask.

Watch the video here:

@oliviacuidmd

Highly requested 60s version of my viral mask hack ##fyp##doctorsoftiktok##masktutorial##covid19##viral##maskhack##learnontiktok

l original sound - oliviacuidmd

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