A P2 rated face masks if a type of respiratory protective devices that are are designed to satisfy the requirements of Australian Standard AS/NZS 1716 and can help filter out fine airborne particulates. To be effective, they must be fitted according to the manufacturer’s instructions and form a tight seal around the face. A P2 face mask can be difficult to maintain a tight seal, particularly for people with facial hair.
Australian Standard AS/NZS 1716 specifies requirements for respiratory protective devices (respirators) intended to provide, according to type, varying degrees of protection against atmospheres containing substances which may be harmful if breathed; also, with certain types, to provide protection against atmospheres which may be deficient in oxygen.
The Standard does not purport to give guidance on the selection, use and maintenance of respirators, this is covered in Australian Standard AS/NZS 1715. The Standard specifies requirements, performance and testing criteria to be observed in the manufacture of respirators.