How to choose masks correctly? The masks that can effectively prevent respiratory infections are medical protective masks and medical surgical masks. These two types of masks are medical equipment. If conditions permit, it is best to buy these two types of masks. How to distinguish these two types of masks? According to the following process: check the registration number of the medical device to determine whether it is a medical device, check the implementation standard GB19083-2010 'Medical protective copper mask
technical requirements' for medical protective mask N95 equipment YY 0469-2011 'Medical copper mask technical requirements 》It is a medical surgical mask. An ordinary medical copper mask is used to prevent exhaled aerosol from entering the oral cavity and nasal cavity, and can be used for disposable health care in ordinary medical environments, and has the lowest level of protection. It is suitable for general health care activities, such as sanitary facilities, liquid preparations, cleaning of beds, etc., or blocking or protecting particles other than pathogenic microorganisms (such as pollen). Two studies have shown that, within the prescribed scope, surgical masks are no worse than N95 masks in preventing influenza. Zhong Nanshan, the head of the senior expert group of the National Health Commission to fight SARS, also said that there is no need to wear N95 masks. General-purpose masks can prevent most virus-carrying droplets from entering the respiratory tract. And to prevent the new coronavirus. Wearing a mask is still useful. Therefore, if you cannot buy N95 masks, you can also choose ordinary surgical masks. 3 At present, there are many kinds of masks on the market. The names of the masks are written with doctors, protective gear, etc., which may not have the above effect. So how should we judge? Regardless of whether it is a medical protective mask or a surgical mask, ordinary medical masks are medical equipment and are included in the management of medical equipment. The production and management of medical devices in my country is very strict. Therefore, if conditions permit, please try to choose a mechanical brand product mask with a medical device production license and a medical device product registration certificate. 4 In addition, some masks on the market implement the GB/T 32610 standard, which is the country's first national standard for civilian protective masks. It is used to filter the air entering the mouth and nose to prevent harmful gases, odors and droplets. Enter and exit the user’s nose and mouth devices. It is mainly divided into cotton masks, non-woven masks, polymer masks, activated carbon dust filter masks and activated carbon fiber felt masks. Masks that meet civilian standards do not belong to the medical category, but they also have a certain protective effect. If you cannot buy a machine brand product, you can also consider buying it. 5 When buying, you should also pay attention to the implementation standards of the skin. Different implementation standards have different protection effects, not only the product name should be paid attention to. If the implementation standard on the package is YY 0469-2011, this mask is a medical surgical mask, and its protective effect is higher than that of ordinary medical masks. Ordinary medical masks usually implement the relevant registered product standards (YZB). 6Not all masks with the N95 mark can prevent bacterial invasion. N95 masks are divided into two types, one is biological respirator, that is, N95 medical protective respirator, and the other is dust-proof respirator. They have the same protection level and have passed the N95 level test, but the implementation standards are different and the protection objects are also different. The standard for biological protective masks is GB19083-2010 'Technical Requirements for Medical Protective MasksThe implementation standard of dust masks is GB2626-2006 'Respiratory Protection Products Self-priming Filtered Particle RespiratorFor the new coronavirus, N95 medical protective masks with biological resistance should be selected.
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