一般的水龙头与烘手机是分开的，平时人们洗完手后，很容易将地板弄湿，老人与小孩很容易滑倒。 Normal ，taps are separated with hand-dryers in public space.And this situation may make the floor too wet for people to walk,especially dangerous for the elderly people and children.Thus,to keep the floor dry is the initial thing to do.