Most residents choose to stay at home during the epidemic, if indoor air pollution, may affect health, the following measures can be taken: 1, do not smoke indoors, cooking hoods or exhaust fans on; 2, appropriate daily ventilation to maintain indoor air circulation, so that indoor air and outdoor air exchange, can reduce the concentration of indoor air pollutants; 3, can use air purifiers, effective removal of harmful gases and pathogenic microorganisms in the air; 4, planting green plants indoors, such as aloe vera, hanging orchids, tiger lilies, etc., not only to beautify the living environment, but also to purify the air.