To provide a hospital room system where facility defense countermeasures are given in housing circumstances at the time when developing immunodeficiency in an infection hospital room.SOLUTION: A blocking room 5 is newly set up that includes a front room side door 22 and a hospital room door 23 between rooms of a hospital room 1 and a front room 2. The air flowing in the hospital room 1 is blocked double by the door of the blocking room when opening the doors of the front room side door 22 and the hospital room door 23. The opening/closing of the front room side door 22 and the hospital room door 23 of the blocking room 5 is converted into an electric signal to interlock with a high-speed variable air volume valve. When the door is opened, air capacity is increased immediately, and thereby a blocking air flow is made to block the inflow air from a different room. The general miscellaneous bacteria are prevented from invading to the hospital room 1 by forming this blocking air flow to prevent various infection of infectious disease patients.SELECTED DRAWING: Figure 2【課題】感染病室での免疫不全を発症した場合の居住環境で施設防御対策を施した病室システムを提供する。【解決手段】病室１と前室２の室間に、前室側扉２２及び、病室扉２３を備えた遮断室５を新設する。前室側扉２２及び、病室扉２３の扉開放時に病室１内に流入する空気を遮断室の扉で二重に遮断する。遮断室５の前室側扉２２及び、病室扉２３の開閉を電気信号に変えて、高速可変風量弁を連動させて、扉開放時は、直ちに風量を増加することで遮断気流を作り、他室からの流入空気を遮断する。この遮断気流を形成することで，病室１に一般雑菌の侵入を防いで感染症患者の多種感染を防止する。【選択図】図２
