Preliminary and Intermediate Filter G4 (EU4)

Filters for the pre-filtration in ventilation systems and devices of all kinds up to fine dust filtration.
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Application areaCivil Defence, Triage, Field Hospitals, First Aid Posts, Military, Decontamination and Hazardous Goods Operations, NGOs/Humanitarian organizations
Width47 mm
Length305 mm
Height305 mm
Starting pressure difference42 Pa
Recommended final pressure difference250 Pa
Nominal volume flow5400 m³/h/m²
Nominal blow speed by nominal volume1,5 m/s
Method of use:

For the pre-filtration in ventilation systems and devices of all kinds up to fine dust filtration.

Technical data:

  • Frame: Cardboard frame, 47 mm wide
  • Filter medium: Synthetic
  • Moisture resistance: 100 % RH
  • Temperature resistance: 100 °C
    • As additional protection, a fleece filter can be delivered on a roll (thickness 21mm, width 610mm, length 30m) in the quality classification G3.