It provides effective protection against organic gases and vapours of organic substances with initial boiling point above 65°C (eg., benzene, cyclohexane, decane, styrene, toluene, trichlorethylene, tetrachloromethane, xylene, gasoline, ethanol, kerosene, diesel, mineral turpentine, ethylene glycol, methyl isobutyl ketone, isobutanol, etc.), inorganic gases and vapours (e.g., fluorine, chlorine, hydrogen sulfide, hydrogen cyanide, hydrogen bromide, ozone, etc.)  and acid gases and vapors (sulfur dioxide).

Breakthrough time of a filter canister is tested according to EN 14387 at humidity 70% and flow rate 30 l/min, which is equivalent to the volume of air per minute used by an average person carrying out medium-heavy work. The approximate life time (usage time) of a filter may, under normal conditions, calculated by comparing the concentration at the workplace and the minimum Dynamic Adsorption Capacity (DAC) for the filter.