The muffler is a very important component for airing and conditionig systems, both civil and industrial, because it reduces the noise transmitted through the system's conduits.

By their employment noise level directed towards one or more of the building's rooms is attenuated and sound emissions towards external environment is reduced.

Mufflers can be realized in the following shapes:

- rettangular

- circular

Absorption rectangylar mufflers are realized as follows:

- outer sheet zinc envelope conveniently ribbed and of adequate necking

- galvanized steel counter flanges

- high density mineral wall acustic baffle(on demand protected by holed sheet)

On demand baffles for made to measure mufflers are supplyed

Circular mufflers with or without ogive are realized as follows:

- sheet zinc external envelope

- internal coating with high density mineral fibres mattress and deadening specifications(Classe 1auto-extinguishing material)

- micro-stretched mattress protection sheet that avoides delamination due to air flux

- stiffened couplings with or without drilled flanges, located at both ends for a quicker connection to the axial ventilator or to the various circular conduits

- deadening ogive installed in concentric position within the mufflers, realized with mattress and micro-stretched net. The ogive is composed of cap, realized with mattress, and micro-stretched net:

Coupling muffler		Flanged muffler