A kind of aroma diffusing device,It include: pedestal； Air helps Pu,The what chassis interior is set,To generate flowing gas and there is the gas delivery port to export the flowing gas； Cavity,On system's setting what pedestal,To accommodate fragrancing liquid,The cavity has exit and entrance,The entrance system is connected to engage with the gas delivery port,The fragrancing liquid is atomized into the cavity to be introduced into the flowing gas,And the fragrancing liquid for being atomized Hou is diffused in the containment portion air via the outlet； Power supply mould group,It is to power supply needed for providing the Pu running of air side； And switch,The what base exterior is set and helps Pu and power supply mould group to be electrically connected with the air respectively,To control the air side Pu unlatching,The circulation of closing or running speed function.一種擴香裝置，包括：底座；空氣幫浦，設置於該底座內部，用以產生流動氣體並具有用以輸出該流動氣體之氣體輸出口；腔體，係設置於該底座上，用以容置芳香液體，該腔體具有出口及入口，該入口係用以與該氣體輸出口接合連通，以引入該流動氣體至該腔體中霧化該芳香液體，並經由該出口將霧化後之該芳香液體擴散至該腔體外部空氣中；電源模組，係用以提供該空氣幫浦運作所需之電源；以及開關，設置於該底座外部並分別與該空氣幫浦及電源模組電性連接，用以控制該空氣幫浦的開啟、關閉或運轉速度功能之循環。
