1 Noise Reduction: 40–60dB sound attenuation, achieving high-efficiency noise isolation while maintaining optimal ventilation and heat dissipation for enclosed equipment. 2 Premium Durable Material: Built with aluminum/galvanized steel/SS304 outer shells, waterproof & anti-corrosion for long-term service in harsh industrial environments. 3 Wide Application: Ideal for generators, compressors, industrial machinery, pumps and other high-noise equipment in factories, construction sites and commercial facilities. 4 Customized Service: Custom size, shape, access doors, ventilation openings & color per your equipment drawings and site requirements. 5 Technical Support: Free CAD design + detailed installation guidance, plus acoustic performance consultation available.