PROBLEM TO BE SOLVED: To provide a CPAP apparatus capable of accurately measuring a pressure with a simple structure.SOLUTION: The CPAP apparatus comprises: a turbofan 50 that sucks and sends out air a pressure sensor 31 that measures the pressure of the air sent out from the turbofan 50 and a casing 11 that comprises a first chamber 11A incorporating the turbofan 50 and comprising an air inflow port 11a for allowing the air to be sent into the turbofan 50 to flow in and an air outflow port 11b for allowing the air sent out from the turbofan 50 to flow out, and a second chamber 11B incorporating the pressure sensor 31 and having atmospheric pressure kept regardless of atmospheric pressure variation within the first chamber 11A caused by operation of the turbofan 50.SELECTED DRAWING: Figure 7COPYRIGHT: (C)2016,JPO&INPIT【課題】簡易な構造で正確な圧力計測を行なうことのできるCPAP装置を提供する。【解決手段】空気を吸入して送り出すターボファン50と、ターボファン50より送り出された空気の圧力を計測する圧力センサ31と、ターボファン50を内蔵し、ターボファン50に送り込まれる空気を流入させる空気流入口11aとターボファン50から送り出された空気を流入させる空気流出口11bとを有する第1室11A、および圧力センサ31を内蔵し、ターボファン50の作動による第1室11A内の気圧変動によらず大気圧に保たれる第2室11Bを有する筐体11とを備えた。【選択図】図7
