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ITG FY03-4
5 June 2003
Acceptable indoor air quality - That quality of air in an occupied enclosed space
that is within an established temperature and humidity comfort zone, and which
does not contain air contaminants in sufficient concentration to produce a
negative impact on the health and comfort of the occupants.
Air contaminant - A gaseous, liquid, or solid substance or combination of
substances in a form transported by or in air that has the potential to be
detrimental to human health.
Allergen substance (such as mold) that can cause an allergic reaction
Biocide substance or chemical that kills organisms such as molds
Fungi neither plants nor animals including molds, yeasts, mushrooms, and
puffballs. Molds reproduce by making spores, which travel through the indoor
and outdoor continually. When mold spores land on a moist/damp surfaces they
begin growing and digesting whatever organic substance they are growing on if
oxygen and moisture are present. It is estimated that more than 1.5 million
species of fungi exist.
Fungicide substance or chemical that kills fungi.
Hypersensitivity Great or excessive sensitivity
Indoor Air Quality (IAQ) - The quality of air in an occupied enclosed space.
Indoor air pollution - The presence, in an indoor environment, of one or more air
contaminants in sufficient concentration and of sufficient duration to be capable
of causing adverse effects to human health.
Mold Mold are a group of organisms that belong to the kingdom Fungi. In this
document mold/fungi are used interchangeably. There are over 20,000 species
of mold.
Microbial - Agents derived from, or that are, living organisms (e.g., viruses,
bacteria, fungi, and mammal, bird and dust mite antigens) that can be inhaled
and can cause adverse health effects including allergic reactions, respiratory
disorders, hypersensitivity disorders, and infectious diseases. Also referred to as
"microbiological" or "biological contaminants."
Negative pressure - A condition that exists when the air pressure in an enclosed
space is less than that in the surrounding areas. Under this condition, if an
opening exists between these locations, air will flow from surrounding areas into
the negatively pressurized space. A negatively pressurized building will have
airflow from the outside into the building through available openings.


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