Learn how to select HVAC sound attenuators that effectively control noise without creating excessive pressure loss. This practical guide covers insertion loss, octave-band performance, face velocity, regenerated noise, attenuator sizing, installation considerations, and fan ESP—helping engineers achieve quieter, more energy-efficient HVAC systems.

Discover the main types of HVAC duct insulation, including fiberglass, elastomeric rubber, rock wool, phenolic foam and PIR. Learn their ideal applications, advantages, disadvantages, condensation-control capabilities, fire performance and key selection considerations for efficient, durable duct systems.