The 5 Factors of Ventilation

1. Which of the following is NOT an aspect of ventilation?

Air pathways and barriers Fans Photocatalytic oxidation (PCO) products Vapor exchangers and barriers

2. What is the significance of 78 70 50?

78°F is the record dew point, 70°F is a dangerous dew point for fungal growth, 50°F is a solid target dew point Of the average 78-year lifespan, we will spend 70 years indoors, 50 of which are spent in our own homes Of all the days of the year, an average of 78 are too hot, 70 are too humid, and 50 are too cold for comfort None of the above

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3. Which of the following is NOT true of newer-construction homes?

They're built tighter than they were in the past They're more insulated than historic homes They're a bit more complex than historic homes They were made with looser code regulations than historic homes

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4. True or False: One of the basics of indoor chemistry is that chemicals can either help or hurt you.

True False

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5. Corbett talked about one unusual location where dehumidifiers are needed during a monsoon season, contrary to popular belief about the city being "dry." What city was it?

Phoenix, AZ Denver, CO Helena, MT Dallas, TX

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6. What is the goal of home performance?

Energy efficiency Control Both A and B None of the above

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7. Humidifiers should avoid misting UNLESS:

They use pure distilled water The droplet sizes are less than 2.5 microns in diameter The climate is classified as "arid" Misting is always okay

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8. True or False: Each time you start considering a new factor of ventilation (e.g., filtration/capture), you must consider the previous factor(s) (i.e., circulation).

True False

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9. In their appropriate applications, ERVs equalize:

Temperature Pressure Humidity All of the above

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10. Which of the following is NOT a rule for makeup air?

Don't blow it on people Don't blow it on surfaces Only introduce it via an ERV Keep the circuit as short as possible

The 5 Factors of Ventilation