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G.A.S. SystemAir Revolution Stratos AC Fan (Silenced)V2


The Revolution Silenced EC V2 is the next generation of silenced fans. It is engineered by Systemair to be lighter, quieter and maintain all the advantages of the original Revolution Silenced model. V2 raises the bar and it is the ultimate sound-absorbing fan. 

The sealed housing is the culmination of a team of engineers who developed a new and novel solution to reduce the noise of airflow. The fans have silent motors and double-balanced blades. 

The V2’s new housing incorporates a sound-reducing foam designed especially for ventilation systems and doesn’t absorb moisture or dust. The metal flanges are inserted into the housing with rubber grommets, forming a seal. The fan, flanges and silencing tube insert into a light, sturdy and moulded outer-body, deadening sound. 


  • 150mm - 420m³/h, 31dB 28W
  • 200mm - 956m³/h, 44dB 72W
  • 250mm - 2039m³/h, 48dB 200W
  • 315mm  - 2111 m³/h,  48dB  200W
  • Moulded one piece fan housing, no possible air leaks.
  • Superior airflow even when using long lengths of ducting.
  • No vibration even on lower speeds.
  • Very quiet in operation.
  • Speed controllable with any type of fan controller
  • Thermal motor protection.
  • Supplied boxed with 2.5 metre cable and molded 13amp plug.