One Chart Shows The Best And Worst Face Mask Types, Based on The Latest Research

A simple trick can reveal whether your face mask offers sufficient protection: Try blowing out a candle while wearing it. A good mask should prevent you from extinguishing the flame.
Read more: https://www.sciencealert.com/this-chart-shows-the-best-and-worst-face-masks-for-each-situation?source=Snapzu