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The world's only floor swirl diffuser with user-adjustable airflow rate, air motion and direction. ...Read more

The world's only floor swirl diffuser with user-adjustable airflow rate, air motion and direction.


Round floor swirl diffuser with user-adjustable air pattern from an inclined air stream to a vertical air plume. Air direction is user-adjustable by rotation of the inclined air stream towards or away from the user for increased or decreased air motion. Airflow rate is user-adjustable for increased or decreased airflow. An optional electric actuator provides VAV modulation. Substantially constant throw height of the inclined air stream to head height of seated occupants prevents cold feet / warm head regardless of the diffuser airflow rate setting. 

Airflow rate 

  • 10 – 55 L/s (36 – 198 m³/h)

Nominal size

  • DN200

Discharge height

  • 0 m


  • User-adjustable airflow rate.
  • User-adjustable inclined air stream direction.
  • User-adjustable air motion (gentle inclined breeze to draught-free vertical plume).
  • User-adjustability by rotation of the diffuser face.
  • VAV damper user-adjustable or electrically motorised.
  • Constant throw to head height of occupants throughout VAV damper range prevents cold feet / warm head at low airflow rates.
  • Low profile basket and damper assembly, suitable for shallow floor plenum.

Download Technical Brochure >>

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