WELL AP Certification Exam Questions
and Answers
How many dwellings in a single building w/ common structural elements are required to
be considered Multifamily Residential? - Answer -5
Feature 01 Air Quality Standards: T/F this feature requires an assessor to complete a
performance test after occupancy. - Answer -True
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. - Answer -PM10
and PM2.5
How large are PM10 and PM2.5 particles? - Answer -PM10 <or= 10 micrometers
PM2.5 <or = 2.5 micrometers
The average life expectancy of a smoker is X years less than that of a non-smoker. -
Answer -10
The levels of this airborne pollutant serve as a proxy for other INDOOR pollutants. -
Answer -Carbon Dioxide
What documentation is required for Feature 03 Ventilation Effectiveness? - Answer -
LOA from MEC engineer &
Commissioning Report
Benzene and formaldehyde are considered what type of compound? - Answer -VOC
How many times higher can VOC levels be indoors than outdoors? - Answer -5x
What documentation is required for Feature 04 VOC Reduction? - Answer -LOA from
architect and contractor
What type of filters are designed to absorb VOCs and remove the largest particles? -
Answer -Carbon filters
,This type of filter is meant to remove smaller particles. - Answer -Media filter (i.e. MERV
13). The higher the MERV #, the smaller the particle it removes.
What documentation is required for Feature 05 Air Filtration? - Answer -For parts 1 & 2
Filter Accommodation & Particle Filtration = LOA from MEP Engineer & Spot Check
Part 3 Air Filtration Maintenance = operations schedule
ultraviolet germicidal irradiation (UVGI) - Answer -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.
What documentation is required for Feature 07 Construction Pollution Management? -
Answer -LOA from Contractor
What 5 items should the Feature 09 Cleaning Protocol document address? - Answer -1.
Frequency
2. Procedures
3. Equipment
4. Supplies
5. Training to improve cleaning regimens
What is Atrazine? - Answer -One of the most widely used pesticides, and a suspected
endocrine disruptor associated with cardiovascular problems.
Long-term exposure to this widely used herbicide may lead to kidney and reproductive
problems. - Answer -Glyphosate
Exposure to asbestos can occur how? - Answer -Via inhalation when building materials
degrade over time or are disturbed during renovation/construction.
Asbestos is associated with what 2 diseases? - Answer -Mesothelioma
Lung Cancer
What effects can lead exposure have? - Answer -Neurotoxic effects.
In early development it's associated with negative effects on memory, IQ, learning, and
behaviour.
In what 4 ways can moisture enter buildings and building assemblies? - Answer -1. Bulk
water
2. Capillary water
3. Air-transported moisture
4. Vapour diffusion
, Why should management of construction pollution be a first priority? - Answer -Due to
the time required to conduct a flush.
What documentation is required for Feature 14 Air Infiltration Management? - Answer -
Annotated Document: Commissioning Report (this feature r/t checking for air leakages
in the building envelope)
What are the potential dangers of high humidity? - Answer -High humidity may promote
the accumulation of growth of microbial pathogens, such as:
bacteria
dust mites
mould
An increase in relative humidity of 35% can increase the emissions of formaldehyde by
what factor? - Answer -1.8 - 2.6
Where and why might radiant heating be preferred? - Answer -In arid environments
because it doesn't further dry out the air.
What pollutants can copy rooms contribute to? - Answer -Ozone
What effect can ozone have on human health? - Answer -It's linked to asthma and other
respiratory diseases.
To whom are air quality metrics data reported to? - Answer -Building occupants and the
IWBI
What must be analysed prior to integrating operable windows into the design? - Answer
-Annual prevailing breeze patterns and average contaminant levels
Up to 60% of people with asthma who live in urban environments also have a sensitivity
to the allergens of what pest? - Answer -Cockroach
The bodies, feces, and saliva of dust mites can trigger what? - Answer -Asthma and
allergic reactions
What documentation is required for Feature 23 Advanced Air Purification? - Answer -
Parts 1 & 2 Carbon Filtration and Air Sanitization = LOA from MEP Engineer & Spot
Check
Part 3 Air Quality Maintenance = Operations Schedule
What has 210x the binding affinity for hemoglobin compared to oxygen? - Answer -
Carbon Monoxide
What is a lack of oxygen delivery to body tissues? - Answer -Hypoxia
and Answers
How many dwellings in a single building w/ common structural elements are required to
be considered Multifamily Residential? - Answer -5
Feature 01 Air Quality Standards: T/F this feature requires an assessor to complete a
performance test after occupancy. - Answer -True
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. - Answer -PM10
and PM2.5
How large are PM10 and PM2.5 particles? - Answer -PM10 <or= 10 micrometers
PM2.5 <or = 2.5 micrometers
The average life expectancy of a smoker is X years less than that of a non-smoker. -
Answer -10
The levels of this airborne pollutant serve as a proxy for other INDOOR pollutants. -
Answer -Carbon Dioxide
What documentation is required for Feature 03 Ventilation Effectiveness? - Answer -
LOA from MEC engineer &
Commissioning Report
Benzene and formaldehyde are considered what type of compound? - Answer -VOC
How many times higher can VOC levels be indoors than outdoors? - Answer -5x
What documentation is required for Feature 04 VOC Reduction? - Answer -LOA from
architect and contractor
What type of filters are designed to absorb VOCs and remove the largest particles? -
Answer -Carbon filters
,This type of filter is meant to remove smaller particles. - Answer -Media filter (i.e. MERV
13). The higher the MERV #, the smaller the particle it removes.
What documentation is required for Feature 05 Air Filtration? - Answer -For parts 1 & 2
Filter Accommodation & Particle Filtration = LOA from MEP Engineer & Spot Check
Part 3 Air Filtration Maintenance = operations schedule
ultraviolet germicidal irradiation (UVGI) - Answer -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.
What documentation is required for Feature 07 Construction Pollution Management? -
Answer -LOA from Contractor
What 5 items should the Feature 09 Cleaning Protocol document address? - Answer -1.
Frequency
2. Procedures
3. Equipment
4. Supplies
5. Training to improve cleaning regimens
What is Atrazine? - Answer -One of the most widely used pesticides, and a suspected
endocrine disruptor associated with cardiovascular problems.
Long-term exposure to this widely used herbicide may lead to kidney and reproductive
problems. - Answer -Glyphosate
Exposure to asbestos can occur how? - Answer -Via inhalation when building materials
degrade over time or are disturbed during renovation/construction.
Asbestos is associated with what 2 diseases? - Answer -Mesothelioma
Lung Cancer
What effects can lead exposure have? - Answer -Neurotoxic effects.
In early development it's associated with negative effects on memory, IQ, learning, and
behaviour.
In what 4 ways can moisture enter buildings and building assemblies? - Answer -1. Bulk
water
2. Capillary water
3. Air-transported moisture
4. Vapour diffusion
, Why should management of construction pollution be a first priority? - Answer -Due to
the time required to conduct a flush.
What documentation is required for Feature 14 Air Infiltration Management? - Answer -
Annotated Document: Commissioning Report (this feature r/t checking for air leakages
in the building envelope)
What are the potential dangers of high humidity? - Answer -High humidity may promote
the accumulation of growth of microbial pathogens, such as:
bacteria
dust mites
mould
An increase in relative humidity of 35% can increase the emissions of formaldehyde by
what factor? - Answer -1.8 - 2.6
Where and why might radiant heating be preferred? - Answer -In arid environments
because it doesn't further dry out the air.
What pollutants can copy rooms contribute to? - Answer -Ozone
What effect can ozone have on human health? - Answer -It's linked to asthma and other
respiratory diseases.
To whom are air quality metrics data reported to? - Answer -Building occupants and the
IWBI
What must be analysed prior to integrating operable windows into the design? - Answer
-Annual prevailing breeze patterns and average contaminant levels
Up to 60% of people with asthma who live in urban environments also have a sensitivity
to the allergens of what pest? - Answer -Cockroach
The bodies, feces, and saliva of dust mites can trigger what? - Answer -Asthma and
allergic reactions
What documentation is required for Feature 23 Advanced Air Purification? - Answer -
Parts 1 & 2 Carbon Filtration and Air Sanitization = LOA from MEP Engineer & Spot
Check
Part 3 Air Quality Maintenance = Operations Schedule
What has 210x the binding affinity for hemoglobin compared to oxygen? - Answer -
Carbon Monoxide
What is a lack of oxygen delivery to body tissues? - Answer -Hypoxia
