The moldex 5000 series disposable half masks have integral gas filters making the mask disposable and exempt from the maintenance requirements of coshh if disposed of within one month when particulate filters get clogged they can be replaced for prolonged use of the mask abek1 protection against organic boiling point 65c 43 inorganic gases vapours acid gases and ammonia plus p3 protection against harmful and carcinogenic dusts fumes and aerosols based on water and oil 10 x workplace exposu