Sound attenuator
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A sound attenuator, or duct silencer, sound trap, or muffler, is a noise control acoustical treatment of Heating Ventilating and Air-Conditioning ductwork designed to reduce transmission of noise thro
Circular sound attenuator (left of the grille)
Air handler
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An air handler, or air handling unit, is a device used to regulate and circulate air as part of a heating, ventilating, and air-conditioning system. An air handler is usually a large metal box contain
Sound attenuator
…longer attenuators with thicker baffles will have a greater insertion loss over a wider frequency range. These types of attenuators are commonly used on air handling units, ducted fan coil units, and at the air intake of compressors, gas turbines, and other ventilated equipment enclosures. On certain air handling unit or…
An air handling unit; air flow is from the right to left in this case. Some AHU components shown are 1 – Supply duct 2 – Fan compartment 3 – Vibration isolator ('flex joint') 4 – Heating and/or cooling coil 5 – Filter compartment 6 – Mixed (recirculated + outside) air duct
A rooftop packaged unit or RTU
An RTU viewed from inside with supply diffusers and return vent (center right)