Let the cloth masks goBut we love our cloth masks! Cloth masks, even those with multiple layers, tend to be up to about 30% effective at filtering out virus particles. There are three options:N95: This is the most protective mask; it’s what health care workers should be wearing. This is the most protective mask; it’s what health care workers should be wearing. Level 3 surgical: This is the most effective version of the little blue disposable mask we’re all now familiar with.

Source: New York Times January 14, 2022 05:13 UTC