This standard specifies the terms and definitions, basic requirements, technical requirements, test methods, inspection rules, packaging, labeling, storage, transportation and quality commitments of civilian anti-oil fume masks (hereinafter referred to as masks). This standard is applicable to protective masks worn to filter out oily particles in air-polluted environments with high levels of oily particles in daily life (such as kitchens, barbecue sites, etc.). This standard does not apply to respiratory protective equipment for special industries such as hypoxic environments, underwater operations, escape, firefighting, medical and industrial dust protection, nor does it apply to respiratory protective equipment for infants and children.