ACDSV smoke vents feature the highest sound ratings available on the market. The product carries an OITC-46 sound rating to guard against low-frequency outdoor sounds such as traffic and airplane noises
and an STC 50 sound rating. It has also received an ISO-140-18 sound rating when tested against rainfall sound.
BILCO’s new Type ACDSV automatic smoke vent has the highest acoustical sound rating
on the market.