Diffusers are very common in heating, ventilating, and air-conditioning systems.
Diffusers are used in both all-air and air-water HVAC systems, as part of room air distribution subsystems, and serve several purposes:
*To deliver both conditioning and ventilating air.
*Evenly distribute the flow of air, in the desired directions.
*To enhance mixing of room air into the primary air being discharged.
Often to cause the air jet(s) to attach to a ceiling or other surface, taking advantage of the Coandă effect.
*To create low-velocity air movement in the occupied portion of room.
*Accomplish the above while producing the minimum amount of noise.
Diffuser
