Incorporate a unique, easy-to-interpret, visual indicator The indicator is a simple bar that develops as a true reflection of the wearer’s exposure to certain organic vapours above a minimum level Takes into account: breathing rate, working technique, task variation and environment Winner of the 2015 British Safety Industry Federation Product Innovation Award Protect against organic vapours with boiling points above 65°C and good warning properties A2 approval for greater gas capacity Filters can be used on all 3M™ Half and Full Face Masks fitted with a bayonet connections system