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Question 1

Merv rating for hospital surgical areas?

Answer 1

15 to 17

Question 2

Merv rating for good commercial, superior residential and general institutional

Answer 2

10 to 14

Question 3

Merv rating for Good residential, basic commercial

Answer 3

5 to 9

Question 4

Merv rating for basic residential furnace?

Answer 4

1 to 4

Question 5

What is air permeability?

Answer 5

Uncontrolled airflow through a building’s envelope

Question 6

What are the three main types of filters?

Answer 6

Dry, wet, and electrical

Question 7

How to determine filter pressure drop?

Answer 7

Subtract down stream air pressure from up stream

Question 8

What tool can be used to measure pressure drop in filters

Answer 8

Magnehelic type gauges and manometers (inches in water column)

Question 9

What is the most cheap filter?

Answer 9

Fibrous media filter. They are washable and disposable

Question 10

What does HEPA stand for?

Answer 10

High efficiency particulate arrestance filters

Question 11

Where can you find HEPA filters?

Answer 11

Computer labs and medical rooms,

Question 12

What’s another name for wet filters?

Answer 12

Air washers

Question 13

Where are air washer filters normally found?

Answer 13

Commercial applications.

Question 14

What is the atmospheric dust spot test?

Answer 14

The measuring of light passed through a paper covered with dust

Question 15

What voltage is used by electronic air cleaners?

Answer 15

High DC voltage