Household disinfectants are often 75% alcohol, or chlorinated disinfectants, mainly 84 disinfectant, because these two disinfectants have inactivating effects on the new coronavirus that is prevalent in recent outbreaks, and they have no obvious toxic side effects and are easily available. The new coronavirus is intolerant to 75% alcohol and chlorinated disinfectants. When using 75% alcohol for disinfection at home, keep doors and windows ventilated and open, and avoid using 75% alcohol to spray directly in the air. Because it is flammable, it is easy to cause safety hazards and avoid the formation of fires, and more alcohol should be used for local wiping, and attention should be paid to avoid dripping when wiping. 84 disinfectant can also be used for local wiping or soaking of items according to the situation, and its effect is also better.