We must remember to wear disposable masks when we go out, which is responsible for our own life and property, and also for the life and property of others. There are two main factors for judging the respiratory protection effect of masks on pathogenic microorganisms in the air: one is its filtration efficiency for particulate matter, and the other is the degree of closeness between the mask and the face of the wearer of the mask.
Although some products claim that the mask material will kill bacteria on the mask, this bactericidal effect is ineffective against bacteria penetrating through the mask and leaking from the seal, so it does not improve the overall effect of respiratory protection.
