PURPOSE: A multipurpose step board device is provided to prevent the spread of bad smell in an indoor place by detecting a man stepping on a step board and activating deodorization.CONSTITUTION: A multipurpose step board device comprises one or more step boards(100a,100b) and a spray unit(200). The step boards are pressed by an object. The spray unit sprays deodorization liquid(210) to the step boards. The step board and spray unit are buried under the floor(20). The spray unit includes: a tank which stores the deodorization liquid a pump which pressurizes the deodorization liquid and nozzle rows(220a,220b) which are connected to the pump and are exposed to each step board.COPYRIGHT KIPO 2012일 실시예로서, 본 발명의 다목적 발판 장치는, 탈취 대상물에 의하여 눌려지는 적어도 하나의 발판 상기 발판에 대하여 탈취액을 분사하는 분사 유니트 를 포함하며, 상기 발판 및 상기 분사 유니트는 바닥면에 매립된다.
