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This material has a filtering efficiency of more than 95% for particles of a certain size, while other messy masks are much worse, such as Severe Acute Respiratory Syndrome (SARS) in 2003, when cotton gauze masks were worn, no matter how many layers, the filtering effect is still relatively poor. Expand the full text Looking at the table,Medical Quickly Delivery Antivirus Coverall, the filtration efficiency of N95 is about 97.4%, while that of cotton gauze masks is only 30% -40%. It should be noted here that the filtration efficiency of surgical masks is definitely lower than that of N95. However, some articles describe that the protective effect of surgical masks against influenza viruses is no different from that of N95. In fact, it depends on the situation in which they are used. In some scenarios, the final protective effect of surgical masks and N95 may be similar,CE Certificate KN95 Mask, but this is almost conditional. In many scenarios, surgical masks are not as good as N95, or even far worse than N95. Innovative micro HEPA high efficiency filter element It has five layers of filtration and 360 ° deep purification, Antivirus Disposable Mask with CE Certificate ,Medical Full Body Coverall, which can effectively isolate harmful substances such as fine particles carrying viruses and bacteria, allergens and second-hand smoke. It can be used continuously for 12 hours. If it is used under normal conditions (normal wear under good air quality), a single filter element can be used for up to 20 days to one month. 5-layer filtration 360 ° deep purification Can effectively isolate harmful substances The mask, which is made of medical-grade translucent silicone material (silicone material better than high-grade nipple material) certified by FDA, is specially designed for Asian children to fit the face and skin more comfortably, and can effectively resist allergy and bacteria. Approved by FDA of the United States and can be matched with watercolor pens to doodle out their favorite patterns, even the details are so in place, must be given full marks. Specially designed for the inlet and outlet covers Personalized graphics for stickers and doodles Natural pulp integrated environmental protection packaging, light, safe and reusable, so that children seem to have a small toolbox at the same time, but also to develop a good habit of storage and organization from an early age. Note: Due to the strong sealing performance of woobi,Against Bacteria Breathable KN95 Face Mask, when the temperature difference between the inside and outside of the mask is large, a small amount of water in the mask is normal. After use, please clean the silica gel part of the mask in time to ensure cleanliness and hygiene. Designed for Asian children AIRMOTION respirator series (Shunfeng free shipping to the 23rd) Woobi module children's respirator Return to Sohu to see more Responsible Editor:. zjyuan-group.com