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Masks that can wear for more than a week are on the market

Time : 2022-06-16

Report from our correspondent: when the melt blown cloth used to make the mask carries two newly developed nano functional materials, when wearing the mask, the nano functional materials can inactivate novel coronavirus, and the inactivation rate is as high as 99.9%. This is the latest high-tech product developed by the "mask Joint Laboratory" jointly built by Dalian Institute of Chemical Physics and three enterprises such as Sinochem. Do you want to have such a mask? The reporter learned that at present, the civilian mask products loaded with the nano functional materials adsorbed by Dalian chemicals to inactivate the virus have been on the market. On September 30, the Joint Laboratory of masks jointly built by Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Sinochem medical technology (Dalian) Co., Ltd., Dalian Haili nonwovens Co., Ltd. and Dalian inspection, testing and Certification Group Co., Ltd. held a signing and unveiling ceremony. The reporter learned from the ceremony that the mask joint laboratory applied new filter materials to the mask to improve the protective effect of the mask and make the application of scientific research achievements faster. It is reported that as early as 2003, when the SARS virus was rampant, Dalian Institute of chemicals proposed the idea of inactivating the SARS virus by using the principles of adsorption and catalysis. However, the SARS epidemic ended rapidly, and the relevant materials did not really play a role. In December 2019, covid-19 was rampant. Dalian Institute of chemical industry restarted its work 17 years ago for the first time and carried out upgrading research. After nearly two years of research, the industrialization of catalytic materials has been realized. The virus inactivation experiment of Anhui Center for Disease Control and prevention showed that the two nano functional materials developed had the effect of directly adsorbing and inactivating novel coronavirus, and the inactivation efficiency was 99.9%. The two materials can be loaded on non-woven fabrics, honeycomb and metal structured carriers, and have been successfully applied in many fields, such as in vitro protection, air purification and disinfection and sterilization. Yang Xue, the executive director of Sinochem, became a reporter to show the newly launched respirator. He said that ordinary respirators achieve the effect of virus isolation by electrostatic adsorption. When two kinds of nano functional materials are added to the melt blown cloth for making masks, when people wear masks, the nano functional materials can directly inactivate the virus, which is safer. Their nano cellulose masks, which will be launched in the near future, have more powerful functions. As a new generation of natural polymer filter material, the diameter of nano cellulose is about 50 nm, the pore formed is at the nano level, and the diameter of virus is about 100 nm. Therefore, by loading the nano cellulose on the micron melt blown cloth to build a micro nano filter layer, we can directly physically filter the virus without relying on charge and play a long-term protective role. It is conservatively estimated that a mask can be worn for more than a week.
How

How to clean the mask? Look at the tips of Xiaobian for health and disease prevention

Time : 2022-06-16

When the temperature is low, wearing a mask can play a good role in keeping warm for patients with rhinitis and asthma. If they catch up with the foggy weather, there are more harmful particles such as dust and soot condensed in the air. Wearing a mask can also effectively isolate them from the human body and avoid the occurrence of respiratory diseases. However, the size of the mask should be moderate. It is appropriate to cover most of the area below the mouth, nose and orbit after wearing it. It is not suitable to be too large or too small.   But the mask is also a double-edged sword. It is good for human body when used well. If used improperly, it may also backfire. First of all, wearing masks should vary from person to person, and the wearing time is also exquisite. When the temperature is low, you can wear them properly to prevent cold. When the temperature is high, you should enjoy the fresh air; The second is to distinguish the front and back of the mask when wearing it. When not wearing it, fold the front side (the side close to the mouth and nose) inward and put it away. Don't hang it around your neck at will, let alone wear the back side, because the back side is exposed and is covered with dust and germs. After contact with the human body, it is easy to inhale these harmful substances through the mouth and nose, which will damage the human body to lose weight. Then, prepare more pairs of masks. It is best to wash and change them as you use them (that is, change and wash them once at a time). When washing, scald them with boiling water for 5 minutes, then scrub them with soap, rinse them with clean water, and hang them in the hot sun to dry.
Six

Six tips to prevent allergic rhinitis: less opening windows and wearing masks to go out

Time : 2022-06-16

Spring is coming. Spring is warm and flowers bloom in spring, and some frequently occurring diseases follow closely. Allergic rhinitis is one of them. Because everything recovers, a hundred flowers bloom, and there are many pollen particles in the air, many people suffer from allergic rhinitis. So, how to prevent allergies in daily life   Spring is coming. Spring is warm and flowers bloom in spring, and some frequently occurring diseases follow closely. Allergic rhinitis is one of them. Because everything recovers, a hundred flowers bloom, and there are many pollen particles in the air, many people suffer from allergic rhinitis. So, how to prevent allergic rhinitis in daily life? What are the methods to prevent allergic rhinitis? Now let's go and have a look with Xiaobian.   1、 Try not to open windows at home. If you live in an environment with many flowers and trees, and you stay at home for a long time, you'd better not open the windows, otherwise it's easy to be allergic to pollen.   II. Reduce the dust outside the outdoor activities, and the pollen content will be much higher than that at home. Therefore, it is recommended to go out less in the season when flowers are in full bloom, especially in parks, grass and other places.   3、 Be prepared for protection when you go out. If you have to go out, you must take preventive measures, such as wearing a mask, and changing clothes and taking a bath in time after you go home to avoid excessive exposure to allergens.
PM2.5

PM2.5 how to pick masks to reduce hazards in smog weather

Time : 2022-06-16

Wearing activated carbon masks is the most effective   In recent days, Beijing has experienced the fourth haze weather of this month. For the sake of health, people began to take protective measures, and various masks also sold well. So, which kind of mask can effectively block PM2.5 particles?   Yesterday, the reporter walked into the environmental measurement and control optimization research center of China Academy of Building Sciences with four kinds of masks purchased from the market. After professional testing, it was found that masks with activated carbon filters are more suitable for wearing in haze weather. On the contrary, gauze masks can hardly block fine particles.   Investigation: gauze masks are out of stock   "Sorry, gauze masks have been out of stock for several days." Yesterday afternoon, in a drugstore on the South Beach, a salesperson answered the reporter. According to her observation, many people have come to buy masks these days, "thick gauze masks are the most popular." In contrast, disposable masks are not so popular.   In some online stores, N95 and Kn90 masks with activated carbon filter are on sale. The reporter saw that some online stores sold 78454 N95 masks in 30 days.   Experience: the mask with activated carbon filter screen is poor in comfort   Before the experiment, the reporter bought four kinds of masks: 24 layer gauze masks, disposable medical masks, N95 masks, and Kn90 masks with activated carbon filters. The reporter respectively experienced the wearing of these four kinds of masks. The results showed that wearing N95 masks and Kn90 masks will make you feel uncomfortable breathing, and the comfort is worse than that of gauze masks and disposable medical masks.
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