Is the air purification and disinfection card useful

Air purification and disinfection card is useless.

Some shopkeepers stressed that "disinfection card" is as effective as "air mask" and "patron saint of children" for children who don't want to wear masks or don't have suitable masks. The reporter bought a Guangzhou-made "Disinfection Card" on the Internet. The cover of the product impressively reads "Stop influenza virus, novel coronavirus virus and SARS virus", "Destroy the specific adsorption of virus" and "Prevent it from infecting host cells".

In addition to the "disinfection card", similar products include disinfection bags, mobile sterilizers and lazy sterilizers. Prices range from tens to hundreds of yuan. Not only the e-commerce platform, the purchasing on WeChat and WeChat merchants have blown up the "disinfection" effect of these products. But the use method is very simple, just hang it on your body to play a role.

According to the store, the anti-virus principle of these "disinfection cards" is similar. The card contains chlorine-containing preparations such as chlorine dioxide and sodium chlorite, as well as various slow-release agents, stabilizers and dehumidifiers that assist the reaction effect. When the powder comes into contact with moisture and carbon dioxide in the air, chlorine dioxide with stable concentration is continuously released, thus achieving the effect of bacteriostasis and deodorization.

Exaggerated expressions have caused many consumers to pay bills one after another, and the sales of some stores have reached thousands.

"After the epidemic, masks are not easy to buy. Seeing that this' disinfection card' has so many functions, I bought five online and put one at home. " Ms. Wu, a Chengdu citizen, said.

Chaos: false propaganda, unclear effect and potential safety hazard.

Do these universal "disinfection cards" really work wonders? According to the reporter's investigation, many similar products are actually sold under the guise of epidemic prevention and control, and the functions are actually difficult to distinguish.

-Some "disinfection cards" contain false advertisements. Chengdu Municipal Market Supervision Administration recently investigated and dealt with relevant cases. An air sterilization electric heating sheet promotes "effectively killing natural bacteria and preventing cross-spread infection" and "air sterilization and protecting health". The regulatory authorities found that electric heating tablets had a certain killing effect on natural bacteria, but advertisers could not provide proof documents to prevent cross-spread infection. At present, the advertisement has stopped publishing.

"It is forbidden to publish false and illegal advertisements involving' prevention, treatment, cure and remedial measures in novel coronavirus'." The relevant person in charge of the Chengdu Municipal Market Supervision Bureau said that some businesses have implanted the related contents of the new crown pneumonia into the graphic advertisements of their products, and promoting the magical "disinfection card" belongs to the category of false and illegal advertisements.

-The actual effect is unknown. Luo, a staff member of the Health Department of Ziyang CDC in Sichuan, said that chlorine dioxide is a broad-spectrum disinfectant with strong oxidation ability, good disinfection effect and low residue. However, some "disinfection cards" advertised that "chlorine dioxide is released after contact with moisture in the air" is obviously wrong, and chlorine dioxide can only play a role in aqueous solution.

"Chlorine dioxide undergoes an instantaneous redox reaction under the specific conditions of water and organic matter, producing an intermediate product oxygen free radical and a final product chloride ion. This kind of free radical has a strong oxidation effect, and it is this kind of free radical that finally produces disinfection effect. Therefore, it cannot be disinfected by releasing chlorine dioxide. " Luo said to.

-There are potential safety hazards. Yang Renguo, an infectious disease doctor at Sichuan Provincial People's Hospital, said that some "disinfection cards" mentioned that they can replace masks, which are suitable for children to wear and are easy to mislead consumers, and there are many security risks. "At present, the epidemic is not over yet, and wearing a mask is still an effective protection method. You can't blindly believe in the efficacy of some' disinfection cards'. " He said that these so-called universal "disinfection cards" are not only equally effective, but also counterproductive when used improperly, causing safety problems.

Multi-party supervision needs to strengthen correct protection, which is the "king"

Liu Yao, the lead lawyer of Beijing Anbo (Chengdu) Law Firm, believes that the information provided by merchants to consumers on the quality, performance, use and expiration date of goods or services should be true and comprehensive. Merchants who use false advertisements or other false propaganda methods to provide goods or services and damage the legitimate rights and interests of consumers shall make compensation.

Lei Guangyue, deputy director of the Advertising Department of the Sichuan Provincial Market Supervision Administration, said that their monitoring found that some unscrupulous merchants used false and illegal advertisements to mislead consumers during the epidemic and should increase penalties.

"Don't blindly listen to the store's propaganda, it is very important to protect it correctly." Yang Renguo reminded that some products, such as "disinfection cards", claimed to prevent COVID-19 and followed the same routine. They may be effective in preventing virus attacks, but the conditions for their function are actually difficult to achieve. The public needs to stay awake and not blindly follow the "folk prescription".

Some experts have also suggested that similar illegal acts often appear in the circle of friends and e-commerce platforms. Moreover, "word of mouth" has a certain concealment, which requires e-commerce platforms and relevant departments to strengthen dynamic supervision.