How to make a regular mask more protective Dr. Olivia Cui, DMD, a Canadian dentist has shared an ingenious hack to make a standard face mask fit better and work much more effectively. @oliviacuidmd Highly requested 60s version of my viral mask hack ##fyp ##doctorsoftiktok ##masktutorial ##covid19 ##viral ##maskhack ##learnontiktok ♬ original sound - oliviacuidmd FacebookTwitterLinkedIn