Comfort Cooling Flashcards
Under normal conditions mechanical ventilation can adequately remove indoor air pollution caused by
Moisture
Unvented gas stoves
Carpets
There may be as many as 100,000 different molds, as long as there is food and _____ these molds will not go away
Moisture
Indoor air pollution monitoring testing equipment is available to identify the source of contamination for
Carbon dioxide
Carbon monoxide
Ozone
To be most effective UV-C germicidal lamps should be placed
In the duct work near the cooling coil
Fiberglass air filters use ________ to trap airborne matter
Continuous glass fiber
High Efficiency Particulate Arrester (HEPA) filters can remove pollutants from the indoor air as small as
20-30 microns
Electrostatic air filters use ______ to clean indoor air
a series of negatively and positively charged plates
_______ filters work best to prevent air turbulence and allow for a more even loading of contaminants
Pleated
The recommended humidity level in homes or buildings is_______
40% - 60%
Duct mounted bypass humidifiers allows air from the supply duct to
Flow directly to the return air duct
Pass through a “media”
Be heated before entering the humidifier
Humidifiers should only operate
When the air handler blower is operating
When the humidistat signals for an increase of humidity
What is the maximum hardness of the water allowable for atomizing type humidifiers?
8-10 grains
High quality energy recovery ventilators
Use a heat exchanger to absorb heat from the air being exhausted
To help prevent allergic reactions or upper respiratory problems humidifier should be
Cleaned regularly
Treated with algaecides
Drained regularly
To kill mold and algae and to prevent them from contaminating the area some manufacturers use
UV lights
