The present invention provides an apparatus for diffusing a chemical substance, comprising: a chamber having a diffusing member arranged to diffuse a chemical substance to air disposed within the chamber, wherein the chamber is in communication with an air inlet and an air outlet. The air inlet is arranged to receive air from an exterior of the chamber, and the air outlet is arranged to expel air from within the chamber.一種用以擴散化學物質的裝置,包括一腔室,腔室具有一擴散構件,擴散構件經配置而將化學物質擴散至腔室內的空氣,其中腔室連通於一進氣口及一出氣口,進氣口經配置以接收來自腔室外之空氣,出氣口經配置以將空氣自腔室內排出。100‧‧‧裝置102‧‧‧殼體106‧‧‧進氣口108‧‧‧出氣口210‧‧‧開口
