A brief discussion on HEPA high-efficiency filter paper
When talking about True HEPA (real high efficiency), we have to talk about: What is the filtration efficiency of the air purifier filter? Many people will say, “The filtration level of the filter I use is…
Protective mask filter material polytetrafluoroethylene microporous membrane
The sudden new coronavirus epidemic in 2020 has spread rapidly around the world, causing a continued shortage of protective equipment such as masks and protective clothing. They have high filtration efficiency,…
Particle size selection for syringe filter membranes
Precision filters, also known as security filters, are generally installed before the pressure vessel to remove fine particles with a turbidity of more than 1 degree to meet the requirements for incoming water …
The difference between traditional air filter paper and HEPA high-efficiency filter paper
Traditional HEPA high-efficiency filter paper mainly relies on the adsorption of fibers to “stick” particles. The diameter of the fiber is about the same as that of the particles, and the “mes…
Application system of polytetrafluoroethylene microporous membrane
Polytetrafluoroethylene microporous membrane material, as one of the important branches in its application system, has always been the focus of technological improvement and application development field. The i…
The difference between the nominal pore size of syringe filter membrane 0.2 and 0.22
Once, people thought that the smallest microorganism in the world was Serratia marcescens (minimum diameter of about 0.5μm). When syringe filter membrane When the pore size is small enough to completely interce…
HEPA high efficiency filter paper grade breakdown
As the heart of the air purifier, a lot of knowledge about HEPA has become something consumers are willing to know. What is HEPA made of? What is its purification principle? How should we judge the quality of H…
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Preparation process of polytetrafluoroethylene microporous membrane
Polytetrafluoroethylene microporous membrane has a special node-microfiber structure. In the 1960s, DuPont began to use single It is prepared by the axial stretching method, but the porosity and mechanical prop…
HEPA high efficiency filter paper filtration grade
Air purifier: A general household air purifier is mainly composed of motors, fans, air filters and other systems. Its working principle is: the motor and fan in the machine make the indoor air Circular flow, th…
Membrane pore size distribution of syringe filter membranes
In the course of our lives, most people will experience injections and infusions. Intravenous infusion is a commonly used treatment method because of its fast action and good effect. recognized by people. The i…