Rectangular Sound Attenuators

CALMO is, due to its unique design with connection facing the side baffles, is suitable for use both in ducts and in direct connection to the air handling unit.

  • Very compact rectangular attenuator
  • Excellent aerodynamic characteristics
  • Very low pressure drop through tapered splitters
  • Environmentally friendly acoustic material, approved by independent test institute: ISOVER Cleantec®PLUS
  • Washable surface layer ISOVER Cleantec® PLUS
  • Available with inspection hatch
  • Fire protected version with 50 mm mineral wool also available
  • Connection dimensions from 400 x 300 to 2200 x 2200
  • Included in the databases Magic CAD and Point
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