GENERAL SYSTEM CLEANING REQUIREMENTS

GENERAL SYSTEM CLEANING REQUIREMENTS
(A) Containment
Debris removed during cleaning shall be collected and precautions must be taken to ensure that
Debris is not otherwise dispersed outside the HVAC system during the cleaning process.
(B) Particulate Collection
Where the Particulate Collection Equipment 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
Particulate Collection Equipment 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 Particulate
Collection Equipment 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.