The air filter is mainly used in the process of using the air filter device, generally used in the clean room, clean plant, laboratory and clean room, the air filter can also be used for electronic machinery and communications equipment, such as dust, when used. There are primary filter, medium efficiency filter, high efficiency filter and sub-efficient models. Various models have different standards and performance.

Air filter In the pneumatic technology, in order to obtain a variety of functions, these three kinds of air source processing elements are often assembled in sequence, which is called a pneumatic triple piece. It is used for gas purification, filtration, depressurization and lubrication. The installation near the gas equipment is the final guarantee of compressed air quality. In addition to ensuring the quality of the three large parts, the design and installation of the compressed air must also consider such factors as space saving, easy operation and installation, and arbitrary combination.

In the process of making filter materials for air filters, non-woven fabrics, metal meshes, glass yarns, nylon nets, etc. are generally used. In the course of use, coarse filters commonly used include: ZJK-1 type automatic roll Wrap type herringbone air filter, TJ-3 automatic roll flat air filter, CW air filter, etc. Its structural form is plate type, folding type, belt type and winding type.

Air filters will contain excessive amounts of water vapor and oil droplets from compressed air coming from the air source, as well as solid impurities such as rust, sand, pipe sealants, etc., which can damage the piston seal ring and block the components. The small vent on the device shortens the service life of components or renders them ineffective. The function of the air filter is to separate the liquid water and liquid oil droplets in the compressed air, and to filter out dust and solid impurities in the air, but not to remove gaseous water and oil.

When the air filter is operated to obtain clean air that meets the standard, the commonly used filter for ventilation is to capture and adsorb dust particles with different particle sizes in the air, so as to improve the air quality, and the chemical filter absorbs dust in addition to the dust. It can also absorb odors, and it is usually used in biopharmaceuticals, hospitals, airport terminals, and human settlements.