Sound absorption effect at the large frequencies range
The AD Silencer are of two types, I.e., silencer for high
frequency and silencer for low frequency
The two types are recommended to be installed by turns
to incrrease sound absorption effect
Excellence for long duration use and wet-proofing
Sound absorption effect by reflection of cross-section
expansion and Helmholtz hole section without fiberglass
absorption material
Low static pressure (0.7mm Aq at 4.8m/s air flow)