What is the opening procedure of the hotel housekeeping department?

1. Knock first to make sure the guest is not in the guest room. If the guest is in the guest room, make sure to enter the guest room with the guest's permission.

2. After no response, it generally means that the guest is not in the room, so you can punch in and continue to clean the room. If the guest is in the guest room, just wait at the door for a while, and the guest will usually come and open the door.