To limit the probability that a neutral or negative pressure
in ticket or attendant booths will lead to the entry of air contaminants that
occur normally in storage garages, such as gasoline and exhaust vapours, into
the booths, which could lead to negative effects on the air quality of indoor
spaces, which could lead to harm to persons.
ATTRIBUTION:
Functional Statement:
F50
To provide air suitable for
breathing.
F44
To limit the spread of hazardous substances beyond
their point of release.
To limit the probability that a negative pressure in ticket
or attendant booths will lead to the entry of carbon monoxide into such booths,
which could lead to harm to persons.