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WELL AP Certification Questions and
Verified Answers
Q: How many dwellings in a single building w/ common structural elements are required
to be considered Multifamily Residential?
ANS: 5
Q:
Feature 01 Air Quality Standards: T/F this feature requires an assessor to complete a
performance test after occupancy.
ANS: True
Q:
These 2 particles make up a large proportion of dust that can be drawn deep into the
lungs. Larger particles tend to be trapped in nose, mouth, or throat.
ANS: PM10 and PM2.5
Q:
How large are PM10 and PM2.5 particles?
ANS: PM10 <or= 10 micrometers
PM2.5 <or = 2.5 micrometers
Q:
The average life expectancy of a smoker is X years less than that of a non-smoker.
ANS: 10
Q:
The levels of this airborne pollutant serve as a proxy for other INDOOR pollutants.
ANS: Carbon Dioxide
Q:
What documentation is required for Feature 03 Ventilation Effectiveness?
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ANS: LOA from MEC engineer &
Commissioning Report
Q:
Benzene and formaldehyde are considered what type of compound?
ANS: VOC
Q:
How many times higher can VOC levels be indoors than outdoors?
ANS: 5x
Q:
What documentation is required for Feature 04 VOC Reduction?
ANS: LOA from architect and contractor
Q:
What type of filters are designed to absorb VOCs and remove the largest particles?
ANS: Carbon filters
Q:
This type of filter is meant to remove smaller particles.
ANS: Media filter (i.e. MERV 13). The higher the MERV #, the smaller the particle it
removes.
Q:
What documentation is required for Feature 05 Air Filtration?
ANS: For parts 1 & 2 Filter Accommodation & Particle Filtration = LOA from MEP
Engineer & Spot Check
Part 3 Air Filtration Maintenance = operations schedule
Q:
ultraviolet germicidal irradiation (UVGI)
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ANS: A sterilisation method that uses UV light to break down microorganisms by
destroying their DNA. Often used in food, air, and water purification.
Destroys bacteria, virus, and mould spores.
Q:
What documentation is required for Feature 07 Construction Pollution Management?
ANS: LOA from Contractor
Q:
What 5 items should the Feature 09 Cleaning Protocol document address?
ANS: 1. Frequency
2. Procedures
3. Equipment
4. Supplies
5. Training to improve cleaning regimens
Q:
What is Atrazine?
ANS: One of the most widely used pesticides, and a suspected endocrine disruptor
associated with cardiovascular problems.
Q:
Long-term exposure to this widely used herbicide may lead to kidney and reproductive
problems.
ANS: Glyphosate
Q:
Exposure to asbestos can occur how?
ANS: Via inhalation when building materials degrade over time or are disturbed
during renovation/construction.
Q:
Asbestos is associated with what 2 diseases?
WELL AP Certification Questions and
Verified Answers
Q: How many dwellings in a single building w/ common structural elements are required
to be considered Multifamily Residential?
ANS: 5
Q:
Feature 01 Air Quality Standards: T/F this feature requires an assessor to complete a
performance test after occupancy.
ANS: True
Q:
These 2 particles make up a large proportion of dust that can be drawn deep into the
lungs. Larger particles tend to be trapped in nose, mouth, or throat.
ANS: PM10 and PM2.5
Q:
How large are PM10 and PM2.5 particles?
ANS: PM10 <or= 10 micrometers
PM2.5 <or = 2.5 micrometers
Q:
The average life expectancy of a smoker is X years less than that of a non-smoker.
ANS: 10
Q:
The levels of this airborne pollutant serve as a proxy for other INDOOR pollutants.
ANS: Carbon Dioxide
Q:
What documentation is required for Feature 03 Ventilation Effectiveness?
, Page | 2
ANS: LOA from MEC engineer &
Commissioning Report
Q:
Benzene and formaldehyde are considered what type of compound?
ANS: VOC
Q:
How many times higher can VOC levels be indoors than outdoors?
ANS: 5x
Q:
What documentation is required for Feature 04 VOC Reduction?
ANS: LOA from architect and contractor
Q:
What type of filters are designed to absorb VOCs and remove the largest particles?
ANS: Carbon filters
Q:
This type of filter is meant to remove smaller particles.
ANS: Media filter (i.e. MERV 13). The higher the MERV #, the smaller the particle it
removes.
Q:
What documentation is required for Feature 05 Air Filtration?
ANS: For parts 1 & 2 Filter Accommodation & Particle Filtration = LOA from MEP
Engineer & Spot Check
Part 3 Air Filtration Maintenance = operations schedule
Q:
ultraviolet germicidal irradiation (UVGI)
, Page | 3
ANS: A sterilisation method that uses UV light to break down microorganisms by
destroying their DNA. Often used in food, air, and water purification.
Destroys bacteria, virus, and mould spores.
Q:
What documentation is required for Feature 07 Construction Pollution Management?
ANS: LOA from Contractor
Q:
What 5 items should the Feature 09 Cleaning Protocol document address?
ANS: 1. Frequency
2. Procedures
3. Equipment
4. Supplies
5. Training to improve cleaning regimens
Q:
What is Atrazine?
ANS: One of the most widely used pesticides, and a suspected endocrine disruptor
associated with cardiovascular problems.
Q:
Long-term exposure to this widely used herbicide may lead to kidney and reproductive
problems.
ANS: Glyphosate
Q:
Exposure to asbestos can occur how?
ANS: Via inhalation when building materials degrade over time or are disturbed
during renovation/construction.
Q:
Asbestos is associated with what 2 diseases?
