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 wetproofing.
-Sound absorption effect by reflection of crosssection
expansion and Helmholtz hole section without fiberglass absorption material.
-Low static pressure (0.7mm Aq at 4.8m/s air
flow)

-Materials : ABS
-Configuration : reflection silencer with multi
expansion section and Helmholtz section​