What Are Ceiling Diffusers?

The term ‘ceiling diffuser’ normally refers to louvre faced ceiling diffusers – the louvre ventilation terminals seen in the ceilings of commercial spaces all over the world.

Louvre faced ceiling diffusers have been popular for decades. Their architectural appearance belies a high performance diffuser with a multitude of configurations and options, including multiple blow directions, rear mounted volume control dampers and removable cores. These options assist both initial installation and ongoing maintenance. Intended for supply applications, these diffusers can also be used in a return (extract) function when a consistent appearance throughout an installation is required.  

Contact Us
Knowledge Hub Video Thumbnail

Installing Ceiling Diffusers


Louvre faced ceiling diffusers can be installed in various methods:

  • Laying into drop in ceiling tile systems (normally 600mm x 600mm or 500mm x 500mm).

  • Pre-punched fixing holes for screw fixing into plasterboard ceilings. 

  • Burgess tile system installation through use of dedicated Burgess compatible frame. 

  • Integration into other proprietary ceiling tile systems, e.g. Armstrong. 

Installed properly, a ceiling diffuser will provide more than adequate infusion of fresh air into a given space, providing adequate ventilation and temperature control. 

Diffusers From HVC 

HVC has been manufacturing high quality diffusers since the 1970’s. Today, we are one of the UK’s largest suppliers of this consistently in demand product. We hold thousands of standard size ceiling diffusers in stock, including those with and without opposed blade dampers for localized volume control, in our West Midlands warehouse. Thanks to our supply chain and quick service, we are able to supply even the largest orders on a next day basis. As well as a range of diffusers, we also offer linear slot diffusers, as well as a full range of fire dampers and louvre accessories.  

In addition to the supply of standard sizes, we retain the ability to manufacture bespoke units in non-standard sizes, with our renowned industry beating lead times.

What Are Ceiling Diffusers?