The materials of high-efficiency air filters mainly include the following:
HEPA filter paper: HEPA filter paper is the core component of high-efficiency air filters. It has high filtration accuracy and is mainly used to capture dust particles and various suspended substances in the air with a particle size of more than 0.5 microns. HEPA filter paper is made of ultra-fine glass fiber, and the removal efficiency of impurities with a particle size of more than 0.3 microns can reach about 99%.
Glass fiber: Glass fiber is an inorganic non-metallic material with good heat resistance, corrosion resistance and filtration ability. Glass fiber filters are mainly used for air filtration in high temperature, high humidity and corrosive environments.
Synthetic fiber: Synthetic fibers such as polyester and nylon have high filtration efficiency and long service life, and are suitable for various environmental conditions.
Activated carbon: Although the filtration accuracy of activated carbon is not high, it can effectively absorb odors or harmful gases in the air. Activated carbon is usually made of materials such as coconut shells, fruit shells or coal after high-temperature activation, and has good adsorption capacity.
PP filter paper: PP filter paper is made of polypropylene and has the characteristics of acid and alkali resistance, corrosion resistance, high melting point and stable performance. PP filter paper has uniform fiber distribution and excellent barrier performance. It is often used in household appliances such as sweepers and vacuum cleaners and large cleaning machines.
PET filter paper: PET filter paper is based on materials such as polyester resin. It has excellent hardness, stiffness and corrosion resistance and is often used in equipment such as sweepers and vacuum cleaners.
Nanofiber filter paper: Nanofiber filter paper is suitable for occasions requiring high-precision filtration due to its unique fiber structure and efficient filtration performance. Its fine fiber diameter and excellent adsorption capacity make it an ideal choice for purifiers.
The choice of these materials depends on the specific application scenarios and needs. For example, high-efficiency filters are widely used in industries with high cleanliness requirements such as electronic optical devices, biotechnology, instrumentation, beverage and food manufacturing industries.