translation.en: We looked at rooms that were naturally ventilated, where the hospital let us turn off the mechanical ventilation in a wing of the building and pry open the windows that were no longer operable, but they made them operable for our study.
translation.zh: 具有自然通风的房间 我们获准关闭了房间的机械通风设备 房间在大楼侧翼部分 并且撬开已经 不再使用的窗户 但是院方为了我们的研究打开了它们