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 Large ventilation fans can be found all around us; for example, in subways, expressway tunnels, and underground parking lots. Alphatech's ventilation system silencers use standardized noise reduction “elements,” arranged to match the conditions of the ventilation equipment in terms of the scale and the number of sound sources. Having handled countless applications in the past, Alphatech has accumulated advanced know-how in this field. Our ventilation system silencers have come to be recognized for their outstanding ease of installation, and for their contributions to improved overall performance of ventilation systems, which is achieved because the silencers'unique design actually reduces air flow resistance.


▲ Underground tunnel ventilation facilities on expressways


▲ Round elements using joint fittings   ▲ Square elements using pin couplings
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