When you have just returned to your rented community, you need to cooperate with community staff for temperature testing and personnel registration, take the initiative to isolate yourself at home if necessary, and report any febrile conditions at the first opportunity. Communicate with other tenants in the room and wear a mask when moving around in the kitchen, balcony, living room and other common areas. Minimize contact with roommates in general, and if something needs to be said in person, keep a distance of more than 1 meter from each other. The room should be properly opened for ventilation, and it is recommended to ventilate the room 2 times a day for 30 minutes each time. Before ventilating the common areas, communicate with your roommate in advance and agree on a time to open the doors and windows to let fresh air into the room.