A disinfection device comprising: a housing; a reservoir within said housing, said reservoir arranged to contain a liquid disinfectant; a vaporizer in fluid communication with the reservoir, said vaporizer arranged to vaporize the liquid mist; a nozzle in fluid communication with the vaporizer, said nozzle arranged to vent the vaporized disinfectant; a drive unit mounted to the housing for driving the disinfection device along a floor space; wherein the disinfection device is arranged to vaporize and diffuse disinfection mist whilst driving across said floor space.一種消毒裝置,其包括:一外殼;一儲存壺,其位於該外殼之內,該儲存壺用來容納一液體消毒劑;一蒸發器,其與該儲存壺流體連通,該蒸發器用來蒸發該液體霧氣;一噴嘴,其與該蒸發器流體連通,該噴嘴用來排出該已蒸發的消毒劑;一驅動單元,其安裝至該外殼來沿著一樓面空間驅動該消毒裝置;其中該消毒裝置配置來在驅動通過該樓面空間時蒸發並擴散消毒霧氣。