Characteristics: A
       device that removes particulate matter from the air.When working with piston machinery (internal combustion engines, reciprocating compressors, etc.), air filters must be fitted as inhaled air containing impurities such as dust will exacerbate the wear of the parts.The air filter consists of a filter element and a housing.The main requirements of the air filter are high filtration efficiency, low flow resistance, and the ability to use continuously for a long time without maintenance.
There are 3 ways of air filtration: ① Inertial type: Since the density of impurities is greater than that of air, when impurities rotate or turn sharply with air, the action of centrifugal inertial force can separate impurities from the air flow. ② Filter type: Guide air to flow through metal filters or filter paper, etc., blocking impurities and adhering to the filter element. ③ Oil bath type: There is an organic oil tray at the bottom of the air filter, which uses the airflow to shock the oil, separates the impurities and sticks to the oil, while the excited oil droplets flow through the filter element with the airflow and adhere to the filter element. When the air flows through the filter element, it can further adsorb impurities, so as to achieve the purpose of filtration.