New coronavirus generally refers to the new coronavirus. Ordinary masks cannot prevent the new coronavirus, it is recommended to choose medical protective masks, N95 masks. New coronaviruses can be transmitted through respiratory droplets, close contact and aerosols, and are generally highly contagious and generally susceptible to infection. Therefore, proper wearing of masks and strengthening of protective measures can prevent the infection of the new coronavirus. It is worth noting that ordinary masks are unable to filter viruses and bacteria, and cannot prevent the new coronavirus, such as cotton gauze masks and sponge masks. For those who have the need, they should choose to wear medical protective masks and N95 masks to achieve the ideal effect of preventing the new coronary virus. In addition to wearing masks, people should be diligent in opening windows and ventilating the air in their daily life, take appropriate physical exercise and ensure a balanced intake of nutrients, etc. They should also pay attention to avoiding close contact with other people, and be diligent in washing and disinfecting their hands. It is recommended that people choose masks correctly and pay attention to the way of wearing masks. If the body is accompanied by fever, cough, body fatigue and other symptoms of discomfort, should promptly consult a doctor.