3.2.2. Fibre Filter G

Return air inlet for filtering textile fibres out of the return air of clean rooms, particularly operating theatres and ancillary rooms; for wall or duct mounting.


Volume flow rate range 65 – 1 670 l/s [230 – 6 000 m³/h]
Width x height 225 mm x 225 mm
to 825 mm x 825 mm
Depth 75 mm


  • Fibre retention on inward wire-mesh filter
  • Filter easily removable by hand, without tools, pull-down for maintenance and disinfection purposes
  • Mounting in smooth room or duct walls. Standard fibre filter dimensions same as those of customary return air grills
  • Available in many size
  • Material: stainless steel, material No. 1.4301
  • Well suited for refitting existing HVAC systems in clean rooms
  • Low sound power level
  • Optional available with slotted sliding device for air flow adjustment