China G2 primary efficiency filter Manufacturers Factory Suppliers
WEBFilter Class Typical Applications; Coarse dust, particle size > 10 µm: insects; textile fibres and hairs; sand; fly ash; spores, pollen; cement dust; G 1 G 2: simple applications (e.g....
WEB1. AFI : American Filter Institute. 2. NBS : National Bureau of Standards. 3. ASHRAE : American Society of Heating Refrigerating & Air-conditioning Engineers. 4. MERV :...
WEBGeneral ventilation air filters. The International Organization for Standardization (ISO) created a new global standard, EN ISO16890, which defines the classification and...
WEBThis chart is a guide only and should not be used for filter selection criteria alone. All information should be checked prior to filter selection by the customer. Check our Air...
WEBJul 4, 2023 · Common grades for Primary, Medium, and HEPA Filters are: G1-G4 for pre filters, F5-F9 for medium-efficiency filters, and H10-H14 for high-efficiency filters....
WEBAIR FILTERS AND EFFICIENCY CLASSIFICATION Arrestance or Dust Spot Efficiency US ASHRAE 52.2 European Union EN779 Class Typical Controlled Contaminant...












