妥思圆形消声器用于通风系统。能有效地降低末端在风量调节时产生的噪声。同时它还可以减小相邻房间之间通过通风管道的声音传递（串音）。
circular
Ø 100 – 1,000 mm
L: 500 – 1,500 mm
Insulation thickness:
50 or 100 mm
Galvanised steel
Casing air leakage flow rate complies with DIN EN 1751, class A
circular
Ø 250 – 1,000 mm
L: 500 – 1,500 mm
Insulation thickness:
50 or 100 mm
Galvanised steel
Casing air leakage flow rate complies with DIN EN 1751, class A
circular
Ø 80 – 400 mm
L: 500 – 2,000 mm
Insulation thickness:
25 or 50 mm
Aluminium
Casing air leakage flow rate complies with DIN EN 1751, class A
circular
Ø 80 – 400 mm
L: 500 – 2,000 mm
Insulation thickness:
25 or 50 mm
Aluminium
Casing air leakage flow rate complies with DIN EN 1751, class A
circular
Ø 110 – 400 mm
L: 500 – 1.500 mm
Insulation thickness: 50 mm
Plastic (PPs)
Casing air leakage flow rate complies with DIN EN 1751, class C
