Antimicrobial:

Antimicrobial: Describes an agent that kills or inactivates
microorganisms or suppresses their growth (See ASTM
E35.15)
Antimicrobial Surface Treatments: Chemical or physical
agent applied to, or incorporated into materials that
suppresses microbial growth.
Assessment: A comprehensive review and evaluation of
the HVAC system, or representative portions thereof, to
make a preliminary determination of which general forms
of contamination are present and to document the
overall system cleanliness level.
ASHRAE: American Society of Heating, Refrigerating,
and Air-Conditioning Engineers