manufacturer: professional knowledge of disposable masks professional knowledge of masks n series is the American standard KN series is the Chinese standard FFP series is the continental standard, the higher the number, the higher the protection level. It is easier to understand using the formula FFP3FFP2u003dN95u003dKN95KN90 The v at the end of the number represents a valve. All 95s are N95 series. The 90 series is not as high as the 95 series, but it can resist more than 90%, which is much better than ordinary masks. In general, the N95 series is sufficient to fight viruses and flu. Since we are confused about the choice of masks, here are some different mask standards. The mask model and implementation standards are printed on the left side of the mask. You can buy masks according to this [1 | Disposable masks are divided into three standards] N95 is produced according to the American standard NOISH, the manufacturer is 3M and Honeywell FFP2 is the state standard EN149 all printed with these three standards at once Sex masks are all qualified masks [II|Disposable masks and ordinary N96] Disposable masks need to prevent high-pressure liquid from spilling, so they have a higher standard than ordinary N95; taking 3M as an example, 1860 and 9132 are commonly used disposable masks . In addition, there are children from the 1860s. Ordinary people or medical staff who do not come into contact with high-pressure spray liquids can choose ordinary N95 masks that meet the NOISH standard. [Three | FFP2 and FFP3] Continental manufacturers of FFP2 standard masks include German UVEX, etc. FFP3 is a higher level (99) protective copper mask
[4 | KN95] Ordinary people and medical personnel who are not exposed to high-pressure liquid splash can use ordinary KN95 masks. [With or without valve] Ordinary masks with valves are comfortable, but medical masks are not allowed to have valves. When ordinary people are infected or suspected of being infected, they must choose medical masks without valves! [Six|Disposable masks] The general standard is that it was printed on the independent outer packaging of each mask in 2010 or 2011. Type 1860/1870 is used for medical operations, moisture and dust prevention, etc. Type 8210/8511 is used in construction engineering, dust prevention, etc. Type 9210 is used in industrial engineering, sand control, dust control and anti-corrosion materials. The two models (including the famous 3M brand) bought in large quantities abroad are all N95, but they are all pure construction dust masks, which can only prevent suspended particles/dust/pollen and so on. No virus protection at all! It is expensive, but it has no effect on new pneumonia! Be sure to see clearly! N95 is a mask, so when you buy it, you must remember the model number 1860/1870, or have the words anti-virus, surgery, and flu fighter, otherwise it will be useless. For more information on masks, please follow the news section!
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