FFP is the European Union standard. There are two main types of masks: personal protective masks and medical masks. The European standard for personal protective masks is EN149, according to which masks are classified into FFP1/FFP2/FFP3.
What is the filtering effect of the FFP mask?
FFP1 masks, oily and non-oily particle filtration efficiency is required to be no less than 80%, which is slightly lower and not suitable for use in the current epidemic situation.
FFP2 masks, oily and non-oily particle filtration efficiency is required to be at least 94%.
FFP3 masks, oily and non-oily particle filtration efficiency requirements not less than 99%. Due to the high requirements for FFP3 respirators, THE FFP2 respirator certification has become the market admission card that domestic mask manufacturers who are interested in exporting to Europe are very eager to get.
Specifications for FFP2 masks:
Both European and American protective masks were tested by American TSI-8130 Filter Testers, through NaCi method for Category N, DOP method for Category R, and DOP method for European standards.
The NaCl method of TSI-8130 instrument: the instrument can automatically produce salt particles, the average diameter of particles is 0.2 μm(aggregate average diameter is 0.26 μm, the arithmetic average diameter is 0.07 μm) through the sample set at a certain flow rate, the instrument automatically prints outflow rate, resistance, transmittance.
DOP method: DOP oil was used to generate dust. The particle diameter of DOP oil was 0.33 μm aggregate average particle diameter, and the average counting diameter was 0.20 μm.
The European FFP2 mask USES DOP oil for dust detection, and the filtration efficiency is required to be no less than 94%. Different FFP2 masks use different filtering materials. On the one hand, the filtration effect is related to particle size, in addition, it is also affected by whether the particles contain oil or not. And the use of Qingzi Nano PTFE mask cloth production of protective masks can meet FFP2, FFP3 level detection standards!
Qingzi Nano PTFE mask cloth is made of new airborne material, which has the characteristics of high filtration efficiency and low respiratory resistance. PTFE microfiltration membrane as the core filtration material, the surface has the microporous structure of the spider web, network connectivity, hole in the 3D structure with very complicated changes, such as channel bend and so on, so have excellent surface filtering function, the tiny particles of 0.3 microns to intercept in the air can reach more than 99.5%, and after the high temperature of simple water treatment, alcohol disinfection can be used repeatedly.
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