Do a good job of cleaning and disinfection and ventilation
Classification：
Protection
In the cold winter, it is still necessary to open windows and keep indoor air circulation. Choose a period of time with suitable weather conditions and open the windows at least 2-3 times a day for 20-30 minutes each time, and pay attention to cold and warmth when ventilating.
If the air conditioner has not been used for a long time, clean and disinfect it before using it again; when using central air conditioning, increase the amount of fresh air and close the return air.
Keep the environment at home, office and public places clean and sanitary, and regularly clean and disinfect surfaces such as desktops, countertops, floors and other objects, as well as public facilities such as elevators and toilets; do not litter.
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