As an electroacoustic device with weak waterproof performance and not very good, what about the handset of a waterproof mobile phone? Is it waterproof? Is it through the waterproof and breathable membrane of the earpiece? Or Teflon air filter membrane?
Low-efficiency filters often use coarse fiber filter media with a diameter of >10mm. Due to the large gaps between fibers, excessive resistance may blow away the dust accumulated on the filter. At this time, the resistance no longer increases, but the filtration efficiency drops to zero. Therefore, the final resistance value of filters below G4 must be strictly limited.
The porosity of Teflon air filtration membrane is very large, which can reach 80% to 90%, and the uniformity is very high, the performance is stable, the air permeability is good, and the filtration efficiency can reach 99.9995%, which guarantees The separation and filtration effect is more efficient. The Teflon microporous membrane produced and developed can simultaneously achieve high breathability and high interception efficiency, long service life, uniformity and stability, and better product performance. The average pore size of Teflon microporous membrane is about 2um to 3um, which can effectively intercept micron-sized fine dust.
The ptfe film manufacturer specializes in the production of Teflon air filtration membranes. It has a full set of advanced production equipment and technology, and also has an advanced clean room and an independent composite slitting workshop to ensure the production quality of ptfe membranes. ;The product materials produced are all imported raw materials, with high uniformity, stable performance, good air permeability, and the filtration efficiency can reach 99.999995%! It can basically meet the filtration efficiency grade requirements of sub-high efficiency, high efficiency and ultra high efficiency filters. Interested parties can enter the store to inquire and purchase! </p
