The density of air filter element is large, and the density of liquid filter element is small.

Air Filter refers to the Air Filter device, generally used for dustproof in clean workshop, clean workshop, clean operating room, laboratory and clean room, or for electronic mechanical communication equipment. There are five models of primary filter, medium filter, high school filter, sub-high efficiency and high efficiency filter. Various models have different standards and performance.

Liquid filter is an indispensable device on the transmission medium pipeline, usually installed in the pressure relief valve, pressure relief valve, constant water valve or other equipment inlet end, to eliminate impurities in the medium, in order to protect the normal use of valves and equipment. When the fluid enters the filter cartridge with a certain specification filter screen, its impurities are blocked, and the clean filtrate is discharged from the filter outlet. When cleaning, as long as the detachable filter cartridge is removed and reloaded after treatment, therefore, the use and maintenance is very convenient.