The role of medical masks
The role of medical masks, with the outbreak of the epidemic, now people's lives can be said to be inseparable from the masks, masks can protect people, despite the fact that people use masks every day, but there are still some people who do not understand the role of masks, the following is the role of medical masks
The role of medical masks 1Ordinary medical masks are a knitted cloth Nonwoven fabric and filter combination of multi-layer protective masks, belonging to the technical field of protective equipment, set permeability, sealing in one, both protective anti-humidity, antibacterial, anti-side-leakage function, while solving the summer heat caused by sweating, stuffy and other problems, which nonwoven layer using nano-nonwoven can be in the air of the Staphylococcus aureus, Mycobacterium tuberculosis is very easy to cause lung infections of legionella bacteria, block and kill and bacteriostatic, and has the characteristics of wash-resistant, long-lasting, reusable and so on. And filter a variety of materials layered composition, set permeability, sealing in one, both protective anti-humidity, antibacterial, anti-side-leakage function, but also to solve the summer heat caused by sweating, stuffy and other problems, which the non-woven layer of nano-nonwoven fabric can be used in the air of Staphylococcus aureus, Mycobacterium tuberculosis is very easy to cause lung infections of legionella bacteria, to stop and kill and bacteriostatic, and has a wash-resistant, long-lasting, reuse and other characteristics. Characteristics.
1, pay attention to the expiration date of the medical mask. Dust masks have a certain expiration date, even if never used, but with the passage of time, the filtering efficiency of its filtering materials will be reduced, especially medical masks, if accidentally used over the expiration date of the medical masks, will not be able to play a protective role because of the user's negligence, it is very easy to cause viral infections. Therefore, before using the medical mask, be sure to confirm the production date and expiration date.
2, before and after wearing the mask must wash their hands. Before wearing a mask, be sure to wash your hands to avoid touching the surface of the mask, and try to avoid touching the mask in order to reduce the protective effect. Try not to touch the outside of the mask when you take it off, so as not to get bacteria on your hands, and be sure to wash your hands after taking it off.
3, the mask should not be worn for a long time. In order to prevent infection, some people may wear a medical mask all day and night, but this will make the nasal mucosa become fragile, lose the original physiological function of the nasal cavity, reduce resistance, so in the population density is not high more ventilated places can not wear a mask.
4, do not use the mask can not be directly put in the pocket. Many people do not use the mask, take off directly into the pocket or bag, until the time of need and directly out of the use, this is very unhygienic, must be folded into a clean sealed bag, and will be close to the mouth and nose of the side of the folded in. And medical masks are best to change a day, and can not change each other to wear, in order to prevent cross-infection.
The role of medical masks2
Medical masks can prevent haze
Medical masks, as the name suggests, it is mainly used for health care workers in the work of the use of certain germs in the process of health care particles effective protection. Mainly divided into the following three categories:
1, disposable medical masks, also known as medical surgical masks, usually used in surgery, for the blue plane mask. Disposable medical masks are divided into three layers, the outer layer is used to prevent blood or saliva splash, the middle layer of the main filtering germs and other toxic substances, the inner layer belongs to the hygroscopic layer, the respiratory process of the production of water vapor effective adsorption.
2, gauze masks, the market share of 50%, usually can be divided into six layers, twelve layers and eighteen layers. Gauze masks are white, the material is pure cotton cloth, after degreasing, bleaching and production. The masks are soft, odorless, tasteless, and free of impurities. After each use, they can be washed with soap and disinfected with a disinfectant solution, and then reused.
3, medical protective masks, the medical industry's most professional protective masks, is the most also protective masks for respiratory infectious diseases, in the SARS, avian influenza virus and the current emergence of the Ebola virus protection during the use of a wide range. Medical protective masks are generally divided into three layers, the inner material is non-woven fabric, the middle layer of high-efficiency electrostatic meltblown layer, the outer layer of ultra-thin polypropylene meltblown layer. Medical protective masks against viruses and bacteria performance is remarkable, the mask is mostly maintenance-free, can not be washed and reused.
Then, understand the three different types of medical masks, and then say whether they can prevent pm2.5.
1, disposable medical masks can not prevent pm2.5, this mask can effectively filter the diameter of more than 4 microns of dust particulate matter, and blood germs can be protected. At present, the main domestic manufacturing standard is YY0469-2011 "medical surgical mask technical requirements";
2, gauze mask even more can not prevent pm2.5, it can only protect the large diameter particles, is the three types of medical masks in the protection of the protective filtration effect of the protection of the worst masks, there is no relevant domestic testing standards;
3, the medical protective masks can be effective in preventing PM2.5, masks in line with GB19083-2010 "medical protective masks technical requirements" standard, can effectively filter the diameter of less than 0.3 micron dust particles as well as pathogenic microbes germs
medical masks role 3Masks must buy sterilized
Not necessarily.
Generally speaking, it is true that sterilized masks will be better, because sterilized masks are generally sterilized by ethylene oxide, after the production of 3-14 days after the paring period, before the market, the protective effect will be more effective, can be very good to avoid the spread of bacteria, viruses and droplets.
But not all occasions need to use sterilization masks, because sterilization masks are mainly used in ICUs, operating rooms and other medical places, if the ordinary life in the place, then there is no need to use sterilization masks, general non-sterile masks are also available.
Why medical masks are not sterilized
Although there is a sterilized mask, but the mask itself can not be sterilized, can only help to shield bacteria, to avoid bacteria directly into the human body's ` respiratory tract, leading to human infection or induced by certain diseases, even if it is a medical masks are also the same, in order to have sterilizing effect, then you need to use some mold drops.
Non-sterile masks can be worn directly
Yes.
Because the mask is divided into non-sterile and sterilized masks, so many people cognitively feel that non-sterile masks can not be used directly, but in fact, non-sterile masks can be used directly, non-sterile masks and sterilized masks is the difference in the finished product of the last sterilizing process with or without other indicators such as filtration efficiency or airflow resistance and other indicators are the same requirements, non-sterile masks are also strictly in accordance with the medical device. Non-sterile masks are also strictly in accordance with the management of medical devices to manage, is safe enough to meet the daily needs of the public protection, can be used directly, just can not be used in a specific medical environment, otherwise it is easy to infection, is not conducive to human health.
What is a non-sterile mask
Non-sterile masks are those that have not been sterilized during the production process, without the final sterilization process of the mask, in short, is the life of a common dust mask, which is not focused on helping the human body to isolate the bacteria, viruses, and microorganisms, but is used for the life of the common haze, Dusty weather, the level of protection is relatively low.