PROBLEM TO BE SOLVED: To provide a blowing device which can be relatively readily installed to an entrance of a house or the like.SOLUTION: A blowing device is installed to a door 9 fitted to an entrance of a construction. The blowing device blowing toward the outside of the construction includes: a chassis 1 provided with a suction port 12 and a blow-off port 11 and fitted to the door 9 a ventilation passage 3 communicates the suction port 12 with the blow-off port 11 an electrically-charged particle generation device 4 generating electrically-charged particles in the ventilation passage 3 and blowing means 2 for sending the air sucked in through the suction port 12 to the outside through the blow-off port 11 together with the electrically-charged particles generated in the electrically-charged particle generation device 4. The suction port 12 and the blowing means 2 are respectively formed so as to face to the outside of the construction.COPYRIGHT: (C)2014,JPO&INPIT【課題】比較的容易に住宅等の出入口に設置することが可能な送風装置を提供する。【解決手段】本発明に係る送風装置は、建築物の出入口に設けられたドア9に備えられ、建築物の外側に向けて送風する送風装置において、吸込口12および吹出口11が設けられドア9に取り付けられる筺体1と、吸込口12と吹出口11とを連通させる通風路3と、通風路3内に帯電粒子を発生させる帯電粒子発生装置4と、吸込口12から吸い込んだ空気を帯電粒子発生装置4で発生した帯電粒子とともに吹出口11を通じて外部へ送り出す送風手段2と、を備え、吸込口12および吹出口は11、それぞれ建築物の外側に向けて設けられている【選択図】図1