Air filter classification

Air filter classification in accordance with PN-EN 779:2005, PN-EN 1822-1:2002 standards

 

 

  1. Values of local efficiency are defined during filter tightness tests 
  2. DEHS - Diethylohexyl sebacate polydispersive aerosol 
  3. DOP - Dioktyl phthalate monodispersive aerosol 
  4. Efficiency defined for 0,3 μm particles 
  5. Efficiency defined for 0,12 μm particles 
  6. 250 Pa - maximum final resistance of flow for coarse filters (G) - air stream should be equal to 0.944 m3/s (3400 m3/h) if the manufacturer does not define other nominal air stream
  7. 450 Pa - maximum final resistance of flow for fine filters (F) - the air stream should be equal to 0.944 m3/s (3400 m3/h) if the manufacturer does not define other nominal air stream