● mainly used in the fresh air ventilation system at the entrance, in blocking the incoming ambient noise, while the full flow of air; ● silencer performance, in general, but the pressure loss is small; ● stability, fire, any weather, apply non-flammable acoustic filler; ● wing blade separated by a minimum of pressure to maximize noise attenuation, and the leaf orientation separated by a straight line of sight, Yier enhanced aesthetics and acoustic performance; ● weather, rain or snow blocking baffle intrusion; ● Specification for installation on various models of any size and structure of the linear ventilated "wall" in; ● According to different requirements can choose to galvanized steel, stainless steel or other material; ● choose a variety of colors to tie in with the surrounding landscape installation location.
