T/AHPCA 024-2020 Copper-containing filter half-mask
T/AHPCA 024-2020 Copper-containing filter half-mask
Basic Information
Scope
Main technical content: This standard specifies the terms and definitions, technical requirements, inspection rules, packaging, marking, transportation, storage, and expiration date of copper-containing filter half-masks (hereinafter referred to as masks). This standard applies to masks composed of a mask body, a nose clip, and a headband, where the mask body is made of copper-containing non-woven fabrics as the inner and outer layers, meltblown fabrics as the filter layer (two layers), and ordinary non-woven fabrics as the middle layer. This standard applies to copper-containing filter half-masks worn in daily life to filter pollen, willow catkins, bacteria, and virus particles in the external air and prevent pollutants exhaled or sprayed from the nose or mouth from entering the environment. This standard does not apply to respiratory protective gear used in special industries such as oxygen-deficient environments, underwater operations, escape, firefighting, medical, and industrial applications.