DISPENSER

摘要

The invention provides an air treatment device (2) comprising: an airborne agent detector (6) comprising a plurality of airborne agent sensors, wherein the airborne agent detector (6) comprises means to detect a threshold level or concentration of an airborne agent; a means to mount a source of air treatment agent (8) to the device (2); and a means (10, 14) to expel a portion of air treatment agent from a mounted source of agent, upon detection of an airborne agent by the detector (6).