Commuters return to work after the holidays, in the office area to take the necessary protective measures: 1, keep the office area clean, office items can be disinfected with medical alcohol; 2, it is recommended that ventilation 3 times a day, 20-30 minutes each time, ventilation should pay attention to keep warm; 3, the distance between people is recommended to maintain at more than 1 meter, multiple office should wear a mask; 4, reduce the concentration of meetings, control the meeting time. If the meeting is too long, it is recommended to open the window midway to ventilate. Disinfection of tables, chairs and other items should be done after the meeting; 5. Meals should be divided into meals during office hours, wash hands with the six-step washing method before eating, while avoiding the gathering of people and not recommending gathering for meals.