Duct & Vent Cleaning of America, Inc. contact HEPA vacuumed existing wall units and ductwork associated with 37 hotel rooms as shown. Included vacuuming units, ductwork and all registers, grills and diffusers. We also cleaned a supply line in the hallway that was HEPA vacuumed. We applied deodorizer, bacteriostat, fungistat to the HVAC Systems. We will also install replacement filters after cleaning each unit.