Protection against organic gases or vapors, such as benzene and its homologues, ketones, alcohols, ethers, aldehydes, alkanes, carbon tetrachloride, chloropicrin, etc.Protection against sulfur dioxide and other acidic gases or vapors, such as sulfur dioxide, hydrogen chloride, phosphorus and chlorine-containing organic pesticidesUse dual color label strips of brown and yellow that are compliant with the international standardUse imported coconut shell activated carbon for long-lasting effectComply with GB 2890–2022 standard, obtained China LA certification