The Helios SSD series models 500, 560, and 630 are designed for suction side sound attenuation, delivering an average noise reduction of 15 dB to minimize operational sound levels. All metal components are constructed from durable galvanized sheet steel, ensuring long-lasting resistance to corrosion.
These units are engineered for installation on flat roofs, providing effective noise control for ventilation systems while maintaining structural integrity. Ideal for reducing sound emissions in commercial and industrial settings, the SSD 500÷560÷630 combine robust build quality with practical noise attenuation performance.