The primary filter is suitable for primary filtration of air conditioning systems and is mainly used to filter dust particles above 5 μm. The primary filter has three types: plate type, folding type and bag type. The outer frame material includes paper frame, aluminum frame and galvanized iron frame. The filter material includes non-woven fabric, nylon mesh, activated carbon filter material, metal hole mesh, etc. The net has double-sided sprayed wire mesh and double-sided galvanized wire mesh.
Alias: coarse filter, cleanable filter, dust filter, air filter, nylon filter, metal filter, wind filter, use and usage: suitable for all kinds of ventilation equipment, dust removal equipment, HVAC, clean Room dust-free workshop, pre-filtration in the air supply system, dust removal filter for central air-conditioning and air ventilation system, protective dust-proof filter for various types of electromechanical, computer room, etc. 3. High-quality spraying system and air supply system in baking device Pre-filtration 4, various clean room first-stage pre-filter materials and characteristics: material is polyester fiber cotton, glass fiber, PP non-woven fabric, needle-punched cotton, nylon mesh, metal mesh, etc. Product form: shape has flat type , folding, bag type technical indicators:
Filter level (EN779): G1, G2, G3, G4
Filter object: ≥5μm coarse dust and foreign matter average weight efficiency: ≥65%, ≥75%, ≥85%, ≥95%
Initial resistance: ≤50Pa
Final resistance: 250Pa (recommended)