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Air Distribution / Diffusers for Assembly Rooms

Step twist diffuser DS-RA-DN 80

For air distribution in assembly rooms with banked seating. Air supply from step front; circular shape.


  • Air distribution system for auditoriums, convention centres, theatres, and other assembly Rooms
  • For integration into step risers ≥ 130 mm in height
  • Micro climate air distribution system with uniform temperature distribution in the occupied zone and draught-free indoor air flow in the micro climate Zone
  • Low sound power Level
  • Maximum temperature difference
  • between supply and indoor air : –5 K
  • between supply and return air: –12
  • depending on internal heat loads and floor-to-ceiling height
  • Low-outlay solution for comfortable Climate
  • Recommended minimum supply air temperature 18 °C


Volume flow rate range:

≤ 6.9 l/s [≤ 25 m³/h]

Sound power level:

≤ 24 dB(A) ref. 10-12 W

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