2. Atomizing humidifiers can operate using

spray-nozzle or CENTRIFUGAL TYPE designs

3. A BLANK is often paired with UV air purifiers

supplental photocatalytic oxidation filer

10. Aggressive indoor air contamination control involves

SOURCE CONTROL, VENTILATION, AND FILTRATION

20 A fiberglass media air filter contains a dust-holding adhesive that helps prevent particulates from

BEING RE-ENTRAINED INTO THE AIRSTREAM

21. Because humidifiers use water, the evaporative surfaces and water reservoir must be cleaned and sanitized regularly to prevent the

distribution of BACTERIA AND MOLD SPORES by the moving airstream.

22. Relative humidity is defined as

THE RATIO OF THE AMOUNT OF WATER VAPOR ACTUALLY IN THE AIR CAN HOLD AT THAT TEMPERATURE, EXPRSSED AS A PERCENTAGE.

23. How can humidification be provided in residences that do not have heating equipment with ductwork?

BY USING PORTABLE ROOM HUMIDIFIERS

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hv10 006 ch34

indoor air quality ch34

Question	Answer
1. In electric furnace and heat pump systems, the recommended humidifier is typically a	steam type
2. Atomizing humidifiers can operate using	spray-nozzle or CENTRIFUGAL TYPE designs

3. A BLANK is often paired with UV air purifiers	supplental photocatalytic oxidation filer

4. HEPA filters can remove extremely small particles, down to about	O.3 micrometers in size

5. In an electronic air cleaner, the ionizing section charges the particles in the air with a	POSITIVE electric charge

6. When odor control is needed, a filter containing BLANK should be selected	ACTIVATED CARBON

7. blank have a large surface area and therefore require a deep filter case	CUBED filters

8. The indoor air quality guidelines established by ashrae are known as	ashrae standard 62.1

9. Environmental tobacco smoke is commonly called	SECONDHAND SMOKE

10. Aggressive indoor air contamination control involves	SOURCE CONTROL, VENTILATION, AND FILTRATION

11 A house is built on property whose soil is rich in uranium. The occupants of the house may BE EXPOSED TO	RADON GAS.

12 Electronic air cleaners generally have A	LOW PRESSURE DROP

13 BLANK HAS A GREATER SURFACE AREA AND DUST HOLDING CAPACITY.	A pleated filter

14 One of the most common substances used as an absorber is	ACTIVATED CHARCOAL.

15 Humidification generally relates to the process of causing water to	EVAPORATE into the air.

16 The controller for a humidifier, a humidistat, has an element that is	HUMIDITY-sensitive.

17 Atomizing humidifiers discharge	FINE WATER MIST into the air.

18 The level of mold contamination that corresponds to areas from 10 to 30 square feet is	LEVEL 2.

19 The recommended relative humidity limits for residences are	30 TO 50 PERCENT RH.

20 A fiberglass media air filter contains a dust-holding adhesive that helps prevent particulates from	BEING RE-ENTRAINED INTO THE AIRSTREAM

21. Because humidifiers use water, the evaporative surfaces and water reservoir must be cleaned and sanitized regularly to prevent the	distribution of BACTERIA AND MOLD SPORES by the moving airstream.

22. Relative humidity is defined as	THE RATIO OF THE AMOUNT OF WATER VAPOR ACTUALLY IN THE AIR CAN HOLD AT THAT TEMPERATURE, EXPRSSED AS A PERCENTAGE.

23. How can humidification be provided in residences that do not have heating equipment with ductwork?	BY USING PORTABLE ROOM HUMIDIFIERS

Created by: DevinH96

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