Conforms to EN 143:2000/A1 and EN14387. These A2P3 twin bayonet filters are suitable for various applications including paintwork and wood working. They protect against gases and vapours of organic compounds with boiling point > 65 °C and also class 3 particles. The A2 section of the filter is the gas filter (Class 2). Class 2 filters may be used at higher concentrations or for a longer time than Class 1 filters. However, this is totally dependent on a number of factors including the atmosphere, the occupational exposure limit and breathing resistance of the user. The P3 part of the filter is efficient in filtering out 99.95% of particles.