Acoustical Ceiling Cleaning and Deodorizing. Scope of Service To include cleaning acoustical portions of ceiling whether blown, textured or tiled. In addition, all non porous items such as Tbars, HVAC vents and intakes, speaker covers, sprinkler rings, can lights, fluorescent light diffuser frames and exit signs are cleaned in detail. Our process maintains the acoustical characteristics as well as restores the cleanliness and fire rating to your facilities ceilings.