How many degrees and how long does it last to kill COVID-19?

According to news media reports, experts in infectious diseases department of tongji hospital said that COVID-19 virus is sensitive to heat, and it can be effectively inactivated when the temperature reaches 56℃ for 30 minutes. ?

As we all know, virus parasitism requires certain conditions, but when it encounters high temperature, most protein will deteriorate and solidify, making the virus lose its foothold and naturally unable to survive.

So we can see that many people use high-temperature cooking masks to kill viruses.

However, this method is actually unscientific, because after boiling, the meltblown cloth material used to filter and adsorb viruses in the mask loses its electrostatic adsorption ability when it meets water, and it can no longer filter and adsorb viruses. The original virus was killed. However, if it is reused, the new virus cannot be filtered, and it is easy to be infected without knowing it, thus becoming a virus disseminator invisibly.

If possible, you can buy an ultraviolet lamp and irradiate it once a day in an empty room, each time 1 hour or more.

Of course, ultraviolet light can kill human cells as well as viruses, so don't stay inside after it is turned on, and you need to pay attention to this when using it.

Besides killing virus at high temperature, ether, 75% alcohol solution, chlorine-containing disinfectant, peracetic acid and chloroform can effectively kill virus. However, we should pay attention to avoid accidents caused by improper use: if the alcohol solution is improperly mixed with 84 disinfectant, the disinfection effect cannot be achieved, and chemical reactions and chlorine gas are easy to occur, which is easy to cause poisoning.

Of course, the safest way is not to go out and avoid going to crowded places. In this case, the risk will be greatly reduced, and there is no need to consider the problem of killing COVID-19 virus at high temperature.