BILCO ACDSH mechanically-operated Smoke Vents are designed to protect against noise intrusion while providing the security of automatic smoke venting. Vents feature an industry high STC-46 sound rating and are ideal for concert halls, theatres and other interior applications that require limited noise from the outside. Vents are preassembled of steel construction.
STC-46 acoustical sound rating.
Preassembled vents of Steel construction.