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Purpose: reduction of noise for Ventilation equipment
Reduction volume: 15~25 db(A)
Resistance loss: 4 mm H2O (wind speed 6m/s)
※ Silencers can be divided into the impedance silencer, impedance compound silencer, micro perforated plate silencer, hole silencer and active silencer.
※ Silencer can be made of galvanized steel，carbon steel spraying and stainlesssteel.
※ Sound-absorbing material is centrifugal glass wool, with glass cloth from on outside and porous or microporous board on internal surface;the thickness can be adjusted according to volume reduction needs.
