Profile: Anymask.com deals exclusively with a variety of masks. We deal with surgical masks, as well as cosmetic masks. Surgical mask - particulate respirator 3M box 20 is used in TB exposure control and may also be worn during laser surgery. It is fluid resistant and helps reduce potential exposure of the wearer to the spray, spatter and aerosol of body fluids. It does not contain either rubber latex or dry natural rubber as components or in its packaging, and is considered hypoallergenic. The 3M organic vapor respirator assembly 5301 helps provide respiratory protection from certain organic vapors at concentrations up to 10 times the permissible exposure limit (PEL).