QUIZ: Measuring Carbon Dioxide Inside Buildings – Why is it Important?

1) Why is CO2 a good measure of IAQ (Indoor Air Quality)?*
- A. CO2 indicates a level of the building’s air exchange with outside air (OSA).
- B. CO2 is directly related to building occupancy and thus can be useful to compare to OSA.
- C. CO2 isn’t an accurate measure since most buildings are bound to have more CO2 inside compared with OSA.
- D. A & B
2) When we breathe, each exhalation contains ________ times higher ppm (parts per million) of CO2 than is typically found in OSA.*
- A. 10
- B. 50
- C. 100
- D. 500
Outdoor CO2 levels are usually between*
- A. 120-600 ppm
- B. 380-500 ppm
- C. 600-750 ppm
- D. 1000-1200 ppm
4) What is the ASHRAE target maximum for indoor CO2 levels?*
- A. 380 ppm
- B. 500 ppm
- C. 1030 ppm
- D. 1500 ppm
5) Elevated CO2 levels in buildings is directly related to*
- A. number of occupants.
- B. weather conditions.
- C. CO2 levels in the OSA.
- D. A & C
6) What is the optimal time of day to measure CO2 levels in most buildings (normal daytime use)?*
- A. before occupants enter
- B. midday
- C. at the end of the day
- D. at midnight
7) If CO2 levels are too high, occupants may feel*
- A. hyper and anxious.
- B. lethargic and drowsy.
- C. lightheaded.
- D. nauseous.
8) What determines a building or zone’s CO2 equilibrium or steady state?*
- A. time of day
- B. when occupants feel most energized
- C. occupancy is long enough that CO2 levels balance with the ventilation rate
- D. CO2 levels are on par with OSA levels
9) CO2 Demand Controlled Ventilation systems are most suitable for*
- A. offices.
- B. conference rooms.
- C. gyms.
- D. B & C
10) What is the maximum allowable CO2 level in an industrial workplace?*
- A. 2000 ppm
- B. 3000 ppm
- C. 5000 ppm
- D. 8000 ppm
11) BONUS Question: What topics are you interested in reading about in future issues of the BOC Bulletin? Check your top 3 picks.
- Practical alternative energy sources
- Projects BOC graduates are doing in their buildings
- Technical updates in lighting
- Technical updates in HVAC systems
- Technical updates in building controls
- Technical updates for water conservation
- Industry trends in facilities management
12) BONUS Question: What do you consider to be the most helpful resources for information about building operation and maintenance technologies and practices? (e.g., websites, magazines, associations, vendors, etc.) List your two favorite resources.
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QUIZ: Measuring Carbon Dioxide Inside Buildings – Why is it Important?

QUIZ: Measuring Carbon Dioxide Inside Buildings – Why is it Important?

Your Information