What's the name of the dirty hotel?

The dirty quilt car in the hotel is called the guest room car. According to the relevant public information, the guest room entrance car is used inside the hotel, also known as the work car, which is used inside the hotel. It is a tool cart used by room health class attendants to carry things when cleaning rooms. When the room service car stops at the door of the room, it means that the room attendant is cleaning the room.