HBZhan Content Introduction:air purifierThere are various technologies and media in it that enable it to provide users with clean and safe air.
　　
The commonly used air purification technologies include: low-temperature asymmetric plasma air purification technology, adsorption technology, negative ion technology, negative oxygen ion technology, molecular complexation technology, photocatalyst technology, TiO2 technology, HEPA filtration technology, electrostatic dust collection technology, reactive oxygen species technology, etc; The material technology mainly includes photocatalysts, activated carbon, synthetic fibers, HEAP materials, negative ion generators, etc. At present, the existing air purifiers in the domestic market mostly adopt composite types, which simultaneously use multiple purification technologies and material media.
　　
1. Low temperature asymmetric plasma air purification technology
　　
The low-temperature asymmetric plasma module forms an asymmetric plasma electric field through high-voltage and high-frequency pulse discharge, causing a series of physical and chemical reactions such as "avalanche effect" between a large number of plasmas in the air, rapidly degrading toxic and harmful gases, live viruses, bacteria, etc., thereby killing viruses, sterilizing, deodorizing, smoke eliminating, dust removing, and producing no toxic substances. It also has the advantages of lifelong disassembly and cleaning, and no need to replace any consumables. He is the supplier of air purification products for the 11th National Games.
　　
2. HEPA filtration technology
　　
HEPA stands for High Efficiency Particulate Air Filter, which is composed of a continuous stack of folded back and forth fiberglass membranes, forming a wavy gasket to place and support the filtering medium.
　　
HEPA is a type of filter material that was originally used for nuclear energy research and protection. Nowadays, it is widely used in precision laboratories, pharmaceutical production, atomic research, and surgical procedures that require high cleanliness. HEPA is made up of very small organic fibers interwoven together, with strong ability to capture particles, small pore size, large adsorption capacity, high purification efficiency, and water absorption. The purification rate for particles as small as 0.3 microns is 99.97%. That is to say, out of every 10000 particles, only 3 particles can penetrate the HEPA filter membrane. Therefore, its filtering effect on particulate matter is very obvious! If it is used to filter cigarettes, the filtering effect can almost reach 100%, because the particle size in cigarettes is between 0.5-2 microns and cannot pass through HEPA filter membranes. The main function is to filter out particles in the air
　　
3. Ionic wind technology
　　
Ionic air purifier technology is also widely used, but its purification efficiency needs to be verified. Ionic air purifier is designed to adsorb particles onto charged metal blades inside the purifier. The blades push the air through components, forming an airflow. Negative and positive ions attract each other, attaching particles and smoke from the air to the blades. However, ion based air purifiers can only absorb about 30% of particles in the air. And it was found that air purifiers using ion breeze technology cannot fully absorb all the air in a closed room.
　　
4. Electrostatic dust removal technology
　　
Electrostatic precipitator technology is another new technology used in air purifiers. This technology used to be mainly used in the last dust removal process of power plants, but now it has been transplanted to air purifiers for use. Electrostatic precipitators can adsorb dust particles as small as 0.1 micrometers (one ten thousandth of a millimeter), and static electricity releases ozone (O3, which is three oxygen molecules). All bacteria adsorbed by the precipitator are instantly killed by 6000V static electricity. Its sterilization mechanism is to destroy the four polypeptide chains of bacterial capsid protein and damage RNA.