Acoustic Treatment on Blower Fans at Genting Sanyen, Banting Selangor. Noise level was reduced from 93 dB(A) to 70 dB(A) measured at 1 meter away. Products applied was ISTIQ Acoustic Enclosure. Duct Silencers were also used to control noise from the ventilation fan. Scope of work; Design, Fabricate, Install and commission.