This does not seem to be news. Long ago, it was proposed that the disposable medical mask used can kill the virus and be used repeatedly as long as it is disinfected with a hair dryer. However, the anti-virus time mentioned at that time was 30 seconds, which was immediately denied by professionals. This method could not achieve the effect of disinfection. However, this matter still seems controversial.
Recently, the laboratory of medical molecular virology of the Ministry of education / Health Commission of Shanghai Medical College of Fudan University, in conjunction with the school of public health, published a scientific research paper "Experimental Research on safe and rapid regeneration of disposable medical masks" online in the Journal of Microbiology and infection, which said that the disposable medical masks after use should be wrapped in household fresh-keeping bags, It can be reused after 30 minutes of household electric blowing treatment, which does not affect the original filtration and interception effect, and can inactivate the contaminated virus.
The hair dryer disinfection method proposed in the paper is different from the previous hair dryer disinfection method. The disinfection time is extended to 30 minutes, and the mask needs to be wrapped with fresh-keeping film.
In addition, the research team also experimented with the oven disinfection method, but the experimental results show that the oven sterilization needs to wrap a tin box outside the specimen, which can not achieve the effect of killing viable bacteria. It is understood that in the virus experiment, researchers simulated coronavirus with live influenza virus. In the safety laboratory, the virus cultured in cells was quantitatively dropped on the mask to artificially cause pollution.