Air Filter (空气过滤器) is the air filtering device , generally used for clean room , clean room , laboratory and clean room , or for dust and other electronic machinery and communications equipment .

Air Filter (空气过滤器) is the air filtering device , generally used for clean room , clean room , laboratory and clean room , or for dust and other electronic machinery and communications equipment .

Contents [ hide ]
1 Introduction
Classification of the air filter 2
Effect of the air filter 3
4 oil bath air filter works
Development History of the air filter 5
6 Classification
7 compressed air filters
7.1 Concepts
7.2 Basic parameters
7.3 features.
8 relevant industry standards

Air Filter Category
   Air filters are generally divided into early efficiency air filters, efficiency air filters, high efficiency air filters and high efficiency air filters, and other sub- models

HEPA filters
   mainly used for trapping dust particles below 0.5um and various suspensions. Using ultra-fine glass fiber paper for the media, offset paper , aluminum and other materials for the division board, and glued wooden frame made ​​of aluminum , using a special silicone rubber for [ 1 ] , odorless, does not harden the surface , a long time too there will be no cracks , chemical stability , corrosion resistance, can absorb the stress generated by thermal expansion and contraction without cracking, moderate hardness , elastic recovery is good. Each flame method have been satisfied that the test has a high filtration efficiency, low resistance , high dust holding capacity and other characteristics.

Medium filter(Secondary filter/The second stage filter)

Mainly used for central air conditioning and central air systems. It can be used for primary filtration air conditioning systems to the next level protection system filters and the system itself , the cleanliness of the air purifier is not strictly required places, through the air after processing efficiency air filters can be directly sent to the user . Efficiency air filters are widely used in central air conditioning and ventilation systems , pharmaceuticals , hospitals, electronics, food and other industrial purification , efficiency air filters also serve as a front-end filter HEPA filter to reduce the load of high efficiency air filters , extending its life.

Primary air filters
    Suitable for central air conditioning and central ventilation system filters ; large air compressor filter ; clean air return system ; in effect, efficient pre- filtering device pre-filtration systems. Early efficiency air filters have a plate , folding , bag , box four styles , frame materials, paper box , aluminum frame, galvanized iron frame , stainless steel frame , non-woven filter material , nylon mesh , activated carbon filter cotton , metal hole net, spray barbed wire fence with double-sided and double-sided galvanized wire . Inexpensive , lightweight, versatile , compact structure.