Specifications include, but are not limited to: HVAC System Cleaning A. During the cleaning process, precautions shall be taken to avoid disbursing dust and debris outside of the HVAC system and shall be collected and disposed of properly. B. Where the Particulate Collection Equipment (PCE) is exhausting inside the building, HEPA filtration with 99.97% collection efficiency for 0.3-micron size (or greater) particles shall be used. When the PCE is exhausting outside the building, mechanical cleaning operations shall be undertaken only with particulate collection equipment in place, including adequate filtration to contain debris removed from the HVAC system. When the PCE is exhausting outside the building, precautions shall be taken to locate the equipment down wind and away from all air intakes and other points of entry into the building. C. The contractor shall ensure that odors and mist vapors are controlled during the cleaning process
