| Supply and return air to and from the ground floor is ducted to diffusers incorporated in and above the light fittings. |
| Some sets come with heat diffusers that provide better control and protect the ceramic from breaking. |
| I will be talking about acoustic diffusers, how we might deal with echo problems in railway stations. |
| Depending on the brand and model, fan diffusers can fragrance a large area. |
| Wipe diffusers with vinegar to remove deposits, check air hoses for cracks and obstructions, and examine all connections to the pumps. |
| Based in Upper Marlboro, Md., the company now supplies acoustic diffusers for a wide variety of installations. |
