There are two types of air filtration, one is a plastic end cover air filter, and the other is an iron end cover air filter. 
Plastic end cover air filter: 
According to different installation methods, different structures such as single pass, double pass, and straight neck can be produced. The plastic color can be arbitrarily adjusted according to the customer's requirements. The normal color is black, pink, and blue. The plastic hardness is divided into 25 degrees, 30 degrees, 60 degrees, and 90 degrees according to international standards. The filter paper is all HV imported filter paper from the United States. 
Filter progress: 5um 
Filtering efficiency: 99.8% 
Iron end cover air filter: 
According to different products, different precision filter paper at home and abroad are selected to meet various types of choices. Single pass, double pass, straight neck and non-standard special structures can be produced according to the requirements of different customers. 
Under the premise of good environment, the service life is about 2500 hours.