AJS supply a range of high quality ceiling diffusers that come in a range of shapes and sizes. Diffusers help to distribute both hot and cold air as well as extracting when connected to a HVAC system they are most often found in offices and replace a tile in a suspended ceilings, this is because they have been designed to use in open spaces and require a mounting height of between 2.6m and 4m. Diffusers are available in various different "ways" 1, 2, 3 and 4 as well as swirl and multicone option, the way is an idicator as to how many directions is distributed in.