Grilles and Diffusers
Grilles and Diffusers are air distribution devices used in HVAC systems to deliver and return air efficiently throughout a building

Grilles and Diffusers
Grilles and Diffusers are air distribution devices used in HVAC systems to deliver and return air efficiently throughout a building. They are installed in walls, ceilings, or floors to help control airflow direction, velocity, and volume, ensuring comfortable indoor environments.
- Grilles
- Mainly used for air return or exhaust
- Linear or louvered openings
- Does not significantly alter airflow
- Diffusers
- Used to distribute supply air into a room
- Designed with blades or cones for uniform air throw
- Spreads air evenly in multiple directions
Types of Grilles

Return Air Grilles
Allow air to return from the room to the HVAC system

Supply Grilles
Deliver air into the room, usually with adjustable louvers

Ceiling Diffusers
Cone or louvered type, distributes air in 360°

Slot Diffusers
Long, narrow units for aesthetic and space-saving use
Grilles and Diffusers
How can we help you?
ADP MANUFACTURING PVT.LTD
Plot no:64, IDA, Cherlapally, Phase-III, Ranga Reddy District. info@adpmfg.com adpmhyd@gmail.com