Will wearing a hood for a long time to inhale micro -end particles can induce lung cancer?rumor!

Recently, the Shanghai rumor platform received a message from netizens, hoping to verify whether the statement of "significantly increased the lung nodules for a long time" is correct. Judging from the legendary method of the web, some people blame the harm of the mask on the middle layer of the mask, and pointed out that the melting spray cloth is a petroleum product.

is this real? If wearing a mask for a long time is so much harmful, what should a doctor and other people who need to wear a mask for a long time?

The mask fuse will not release the "micro -end granules"

Associate Professor Zhou Yiming of Huashan Hospital Affiliated to Fudan University appeared and said that the news of the network transmission was unreliable. He pointed out that in addition to blocking the spread of the new crown virus, the mask can also prevent various types of respiratory diseases caused by inhalation of haze, but the mask is not good for lung cancer's greatest risk factors. The side effects of long -term masks are chronic hypoxia, and skin problems caused by stuffy and humidity. This is why disease control experts remind the public that wearing different protective grade masks on different occasions, because among various masks, N95 and other protective grades have a high breathing resistance and are not suitable for long -term wear. He also reminded that the most effective way to prevent lung cancer is to avoid smoking, inhaling second -hand smoke, and paying attention to a healthy diet.

As for the rumors that "the melting spray club releases micro -end particles", the Shanghai rumor platform also asked a number of chemical experts, saying that the statement was nonsense. Relevant sources pointed out that felting spray cloth is the core material of the mask. It is indeed based on petrochemical products polypropylene as the main raw material, but no particles will be released. If the logic of the news of the Internet means all plastic products are volatile. Plastic is a polymer structure. Under normal circumstances, molecules and molecules are bonded together. It is impossible to "degrade" or "release" small particles. From the perspective of application scenarios, plastic products and related raw materials are widely used globally, including medical use, food, etc., and the application is becoming wider and wider. How can these products get these applications if these products are harmful to the human body? At the same time, the plastic products and related raw materials that are qualified and related raw materials need to be tested to meet the national standards and bids. There is no risk of online transmission.

These misunderstandings related to masks must also be clarified

The Shanghai rumor platform also found that "which kind of mask is selected in different occasions", "masks to disinfect the use of ethylene oxide, whether it will also be poisoned" and "how to choose a qualified mask" and other issues have been repeatedly mentioned. In fact, they all have official answers.

How to choose a hood in different occasions?

Recently, the weather in Shanghai has been hot, and many citizens have said that the mask "can't wear it." In this regard, Wu Huanyu, deputy director of the Municipal Centers for Disease Control, reminded that citizens should still wear masks when they go out, because wearing a mask is an effective way to block the spread of the airway. When wearing a mask, citizens should pay attention to covering the mouth and nose when wearing a mask.

However, the type of mask can be adjusted according to the scene: if you go to the park and other outdoor places, you can wear a medical surgical mask at one time. If you go to the mall, supermarket, office and other indoor places, wearing particulate protective masks, that is, KN95/N95 mask. If you need to go to the hospital for medical treatment, it is recommended to wear a particle protective mask or medical protective mask at the KN95/N95 or above level.

Is the mask disinfected with ethylene oxide toxic?

This is a rumor that has been clarified many times.

Zhou Yiming said that epoxide is a common disinfection agent and is indeed toxic, but it is not scientific to disconnect from dosage. The mask produced according to the standard process, its ethylene oxide residue will not endanger physical health. For the public, it is more important to choose a qualified mask.

Wearing a mask can blow out the lighter, the mask is not qualified?

For the choice of qualified masks, some folk "secret recipes" are also circulated on the Internet, including "wearing a mask can blow out the lighter, indicating that the quality of the mask is not good; the quality of the mask is reliable." The Shanghai CDC clearly states that this evaluation method is not comprehensive and unreliable.

The Shanghai Centers for Disease Control and Prevention stated that wearing a mask blowing the lighter can only characterize the resistance resistance of the mask, and it does not reflect the key technical indicators of the mask -filtering efficiency.

For the public, pay attention to two points to buy masks:

The first is to query the registration number of the mask.

In our country, medical type masks are managed as medical devices and must be recorded with the drug supervision and management department. Generally, the public can see the registration certificate number on the mask packaging, and then query through https://www.nmpa.gov.cn/ through the official website of the State Drug Administration. If you can find it, it means that the product is registered and recorded, and the product is more credible.

It should be noted that particulate protective masks (including common KN95 masks or N95 masks) are not supervised as medical devices, so they cannot be queried through the above website. However, the Market Supervision Administration will conduct sampling inspections to publicize unqualified products.

The second is to check the execution standard number of the mask.

Each mask has its corresponding product standards.For example, the use of medical masks at one time, the corresponding criteria are "YY/T 0969" Disposable Medical Mask "; the corresponding criteria for medical surgical masks are" YY 0469 "Medical Surgery Mask", KN95 mask or N95 mask corresponding standard standard"GB 2626" Respiratory Protection Self -sucking Filter Filter Preventive -Granges A respiratory "or" US NIOSH Decision "or" Europe EN149 "; the corresponding standard of medical protective masks" GB 19083 "Medical Protection Mask Technical Requirements" or "US NIOSH Decision"EssenceChart source: WeChat public account "Shanghai Disease Control"

According to the standard requirements, the execution standard number is required on the minimum packaging.If you can't find the execution standard number, it is recommended not to buy.

Observation of Sichuan (Source: Shanghai Network Rumors Release WeChat Public Number)

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