Boët Stopson - Silencieux wave

Ventilation silencers and: SV & Acoustic ventilation grilles

Boët StopSon offers solutions specifically for sectors that need to control noise as well as air circulation. These ventilation silencers ensure that downstream heat exchangers and cooling equipment have the airflow they need to stay super-efficient.

Boët StopSon has implemented numerous systems in industrial environments to reduce noise pollution for applications such as :

  • Centrifugal fans
  • Axial-flow fans
  • Motor testbenches
  • Industrial premises (workshops, technical rooms)
  • Air-conditioning and ventilation of technical rooms in buildings


Boët StopSon offers a wide range of ventilation silencers with the following options and features :

  • Noise pollution reduction 10dB(A) to 40dB(A)
  • Circular or rectangular design
  • Connect using standard flanges
  • All types of dimensions
  • Galvanised steel, carbon steel, stainless steel


The straight-blade (LD) and curved-blade (LC) acoustic ventilation grilles offered by Boët StopSon meet the technical requirements and architectural imperatives of any type of building such as public-access buildings, industrial buildings, boiler rooms, data centres, etc.

The LD and LC acoustic ventilation grilles are designed for the following applications:

  • The inlets and outlets of natural and forced air ventilation and air handling systems
  • The acoustic insulation of machines, particularly ventilation and air-conditioning equipment
  • Inlets / Outlets of cooling towers