The early effect of G-class air filter 
 Resistance; air flow; use of large and long life. 
 Application: for the primary air conditioning system filters. 
 G series of coarse air filter in eight varieties, were: G1, G2, G3, G4, GN (nylon mesh filter), GH (metal mesh filter), GC (carbon filter), GT (high temperature coarse filter). 
 F series, air filter efficiency 
 The efficiency air filters, mainly for the capture 1-5μm particles of dust and a variety of the suspension, widely used in air conditioning equipment and air conditioning system, but also for mid-level multi-stage filtration system protection. This series is mainly bag structure, frame material: aluminum alloy, galvanized steel, can also be made of frameless. Mainly non-woven filter materials. 
 (Secondary filfer) 
 1) The role: dust particle trapping 1-5um 
 2) Type: frameless and frame-type bag 
 3) Media: special non-woven fabrics or glass fiber 
 4) Efficiency: 60% ~ 95% 1 ~ 5um (colorimetric) 
 F-efficiency air filter points in the bag and two non-bag, which bag including the F5, F6, F7, F8, F9, including non-bag FB (plate in effect filter), FS (diaphragms in effect filter), FV (combined in efficiency filter). 
 In effect filter is mainly used for central air conditioning and central air systems. It can be used for the primary air conditioning system filters to protect the system in the next level of filters and the system itself, in the cleanliness of the air cleaner place is not strictly required by the efficiency of the air after the filter can be directly sent to the user. I produced the effective bag filter (bag filter) border with cold plate spray, galvanized sheet and other forms of non-woven filter materials, glass fiber, filter size of 1 ~ 5um, filtration efficiency of 60 to 95 % (colorimetric method). 

 GK series of high efficiency air filter 
 1) The role: 0.1 ~ 0.5um trapping small particles 
 2) Type: aluminum frame, no partition 
 3) Media: ultra-fine glass fiber paper 
 4) Efficiency: 99.999% 0.3 um (DOP method) 
 GK series of highly efficient filter is divided into a partition high efficiency filters and filter without clapboard, clapboard high efficiency filter, including GK (a partition high efficiency filter), GKW (high temperature high efficiency filter), GKA (resistance humidity high efficiency filter); no partition efficiency filter including GKYW (combined combined high efficiency filter), GKYS (no partition high efficiency filter), GKYC (sump pleat high efficiency filter), GKYL (super- low resistance pleat high efficiency filter), GKYD (turret-type pleat high efficiency filter), GKUL (0.1um super-high efficiency filter.)