The first step in identifying the face mask to fit your requirements is to know the different types. Medical face masks are broken down into two main categories – surgical masks and respirators.
Type I and Type II masks
Type I and Type I R face masks have a BFE (bacterial filtration efficiency) of 95%, whereas Type II and Type II R face masks have a BFE of 98%. The breathing resistance and splash resistance for Type I R and Type II R masks are exactly the same. Type I, I R, II and II R face masks are medical masks tested in the direction of exhalation (inside to outside) and take into account the efficiency of bacterial filtration. Surgical masks of this type stop the wearer from infecting the surrounding environment. They are not effective at protecting the wearer from airborne diseases, such as coronavirus.
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