Presents some exhaust types for windowless toilets and discusses several questions in exhaust design: exhaust air volume, air velocity in duct, fan air volume, noise and exhaust shaft construction.

• 介绍了无窗卫生间排风的几种方式，指出了设计中应该注意的几个问题，着重探讨了排风量、风道风速、风机风量、排风设备的噪声、排风竖井的做法等。