Protects against Combination organic vapours (b.pt. >65ºC), inorganic & acid gases, Ammonia Particulates and Formaldehyde. The D8000 Gas and Vapour, and Combination Gas, Vapour and Particulate Secure Click™ filters meet the requirements of the European standard EN 14387:2004 + A1:2008. The filters MUST NOT be immersed in water/liquid during cleaning. The plastic components of the filters may be wiped with a 3M™ 105 Face Seal Cleaner.