Question 1

Why are humidifiers usually installed in the supply duct of a gas-fired forced air heating system?

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Question 2

To remove odors, downstream from air filters, a filter using a material called ______________________________ is used.

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Question 3

In the ionizing section of an electronic air cleaner, the particles in the air are ___________________________________.

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Question 4

What is the major objection to an atomizing type humidifier?

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Question 5

How can the installation of a humidifier help to reduce heating costs?

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Question 6

Why are high efficiency particulate arrestor (HEPA) filters desirable?

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Question 7

Air in homes tends to be drier in the winter. Why?

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Question 8

Define relative humidity.

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Question 9

Deep extended surface air filters are up to three times more efficient than regular air filters because the filter media used is ______________________________.

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Question 10

Why should humidifiers be cleaned on a regular basis?

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Question 11

Describe an atomizing humidifier.

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Question 12

How does adding humidity to the air in a residence affect the thermostat setting?

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Question 13

For high-efficiency fossil fuel and electronic furnaces as well as heat pump systems, the recommended humidifier would be an ______________________________ type.

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Quiz 20: Air Humidification and Filtration