Boiling vinegar or lighting incense cannot prevent new crown pneumonia. Vinegar itself is acidic, and some people think that virus cannot survive in acidic liquid, that is, boiling vinegar can possibly prevent pneumonia and reduce the virus in the air. In actuality, if you want to make the acidity in the air rise by boiling vinegar, its required concentration is very high and can damage human respiratory tract, so boiling vinegar is not recommended. It is recommended to open the windows to kill the virus in the air. The virus itself must be in the human cells to survive and multiply. Once saliva enters the air, it loses infectiousness after drying, ventilation can reduce the chance of saliva existing in the air; In addition, ultraviolet ray has the effect of killing new coronavirus, ultraviolet ray disinfection lamp can be applied at home; household disinfection solution, 84 disinfection solution, 75% alcohol, etc. all exist disinfection effect, and its effect is better than boiling vinegar. Content source: Dr. You Lai