Rumor identification: The new air system will not cause the new coronavirus pneumonia infection. Rumor analysis: 1, the new air system is a device that can help indoor ventilation, the fresh outdoor air after treatment into the room, the indoor polluted air discharged to the outdoors, so as to ensure the circulation of indoor air, to ensure that indoor always have fresh air. And its filtration device can effectively reduce harmful substances in indoor air, such as cigarette smell, mold, bacteria, viruses and other harmful gases. Therefore, the new air system is beneficial to reduce the new crown virus infection. 2, research confirms that the higher the ventilation rate, the faster the number of droplet particles in indoor air decays. Lack of ventilation or low ventilation rate increases the rate of airborne infections and disease outbreaks. And as the epidemic continues to spread and preventive and control measures are escalating, keeping indoor ventilation is in line with the principle of diligent ventilation for epidemic control. Therefore, during an epidemic, staying at home with a fresh air system on and increasing ventilation can reduce the chance of disease infection, but office environments should still wear a mask and wash their hands regularly to prevent infection. Special note: The fresh air system can exhaust the virus to the outside and play a certain protective role, but can not directly kill the virus. Studies have confirmed that 75% ethanol has a significant inactivating effect on the virus, so if you want to disinfect your home supplies, it is best to choose medical alcohol. In addition, the virus is also very sensitive to UV light and heat. Heating at 56°C for 30 minutes or irradiating with UV light for 30 minutes can effectively inactivate the new coronavirus.