Podcast
Questions and Answers
Who established the EPA?
Who established the EPA?
- George W. Bush
- Barack Obama
- Bill Clinton
- Richard Nixon (correct)
Indoor air quality falls under the oversight of the EPA.
Indoor air quality falls under the oversight of the EPA.
True (A)
What is Legionnaire's disease?
What is Legionnaire's disease?
A serious type of pneumonia caused by the Legionella bacteria.
Legionella bacteria can be found in ______ systems, hot tubs, and other water sources.
Legionella bacteria can be found in ______ systems, hot tubs, and other water sources.
Match the following ASHRAE Standard 62.1 aspects with their descriptions.
Match the following ASHRAE Standard 62.1 aspects with their descriptions.
What is the primary purpose of ASHRAE Standard 62.1?
What is the primary purpose of ASHRAE Standard 62.1?
ASHRAE 62.1 applies to all building types, including low-rise residential buildings.
ASHRAE 62.1 applies to all building types, including low-rise residential buildings.
Does ASHRAE 62.1 directly specify limits for every indoor air contaminant?
Does ASHRAE 62.1 directly specify limits for every indoor air contaminant?
What percentage of the net occupiable floor area should be the openable areas to ensure sufficient natural ventilation according to ASHRAE 62.1?
What percentage of the net occupiable floor area should be the openable areas to ensure sufficient natural ventilation according to ASHRAE 62.1?
ASHRAE 62.2 applies to high-rise residential buildings.
ASHRAE 62.2 applies to high-rise residential buildings.
What is the purpose of ASHRAE 62.2?
What is the purpose of ASHRAE 62.2?
The formula for the required ventilation rate according to ASHRAE 62.2 is Qtotal = 0.03 × Afloor + 7.5 × (Nbr + _____).
The formula for the required ventilation rate according to ASHRAE 62.2 is Qtotal = 0.03 × Afloor + 7.5 × (Nbr + _____).
What is the minimum exhaust ventilation requirement for kitchens according to ASHRAE 62.2?
What is the minimum exhaust ventilation requirement for kitchens according to ASHRAE 62.2?
Match the following ventilation requirements with their respective spaces:
Match the following ventilation requirements with their respective spaces:
ASHRAE 62.2 recommends using unvented combustion appliances without any restrictions.
ASHRAE 62.2 recommends using unvented combustion appliances without any restrictions.
What is the recommended minimum MERV rating for air filters in HVAC systems according to ASHRAE 62.2?
What is the recommended minimum MERV rating for air filters in HVAC systems according to ASHRAE 62.2?
Flashcards
EPA Establishment Year
EPA Establishment Year
The Environmental Protection Agency (EPA) was created in December 1970 by President Richard Nixon.
Indoor Air Quality (IAQ)
Indoor Air Quality (IAQ)
IAQ falls under the Environmental Protection Agency's (EPA) oversight, encompassing factors affecting air quality within buildings.
Legionnaire's Disease Cause
Legionnaire's Disease Cause
Legionnaire's disease is a serious pneumonia caused by the Legionella bacteria, transmitted via contaminated water aerosols.
ASHRAE Standard 62.1
ASHRAE Standard 62.1
ASHRAE 62.1 specifies minimum ventilation rates for acceptable indoor air quality in non-residential and commercial buildings (not low-rise residential).
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ASHRAE 62.1 Ventilation
ASHRAE 62.1 Ventilation
Ventilation rates in ASHRAE 62.1 are calculated based on building occupancy, type, and activities.
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ASHRAE 62.1 VOCs
ASHRAE 62.1 VOCs
ASHRAE 62.1 references, rather than directly specifies, VOC (Volatile Organic Compound) limits, using other standards.
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ASHRAE 62.1 Humidity
ASHRAE 62.1 Humidity
The recommended indoor relative humidity (RH) range in ASHRAE 62.1 is 30% to 60%.
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ASHRAE 62.1 MERV
ASHRAE 62.1 MERV
ASHRAE 62.1 suggests a minimum MERV (Minimum Efficiency Reporting Value) rating of 6-8 for building ventilation filters.
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ASHRAE 62.1 ventilation requirement
ASHRAE 62.1 ventilation requirement
Openable areas (like windows) must be at least 4% of the floor area for natural ventilation.
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ASHRAE 62.2 ventilation formula
ASHRAE 62.2 ventilation formula
Qtotal = 0.03 × Afloor + 7.5 × (Nbr + 1). (Qtotal = ventilation rate, Afloor = floor area, and Nbr = number of bedrooms).
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Kitchen exhaust (ASHRAE 62.2)
Kitchen exhaust (ASHRAE 62.2)
Minimum 100 CFM intermittent or 5 air changes per hour continuous.
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Bathroom exhaust (ASHRAE 62.2)
Bathroom exhaust (ASHRAE 62.2)
Minimum 50 CFM intermittent or 20 CFM continuous.
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Recommended HVAC filter rating
Recommended HVAC filter rating
Minimum MERV 6 or higher.
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Unvented combustion appliances (ASHRAE 62.2)
Unvented combustion appliances (ASHRAE 62.2)
Discouraged due to carbon monoxide risk. If used, strict emission limits apply.
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IAQ investigation factors
IAQ investigation factors
Workspace/office changes, general office/building changes, housekeeping/maintenance issues, and air quality characteristics (odors, humidity, etc.)
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Environmental Protection Agency (EPA)
- Established in December 1970 by Richard Nixon.
- Oversees indoor air quality.
Legionnaire's Disease
- Serious pneumonia caused by Legionella bacteria.
- Transmitted by inhaling contaminated water droplets/aerosols.
- Example: Spread from cooling towers in a hotel.
- Legionella found in water systems, hot tubs, etc.
ASHRAE Standard 62.1
- Covers indoor air quality in all occupied spaces (except low-rise residential).
- Sets ventilation rates based on space type, occupancy, and activities.
- Doesn't specify all contaminant limits; references EPA and OSHA standards.
- Addresses VOCs via relevant health guidelines.
- No direct ACH (air changes per hour) prescription; ventilation rates are translated to ACH.
- Recommended relative humidity (RH): 30-60%.
- Minimum MERV for filters: 6-8.
- Natural ventilation: Openable areas (windows) should be at least 4% of net floor area.
ASHRAE Standard 62.2
- Focuses on low-rise residential buildings (single-family, duplexes, up to 3 stories).
- Defines minimum ventilation rates for acceptable indoor air quality.
- Example calculation: Qtotal = 0.03 × Afloor + 7.5 × (Nbr + 1).
- Qtotal = total ventilation rate (CFM)
- Afloor = floor area (sq ft)
- Nbr = number of bedrooms
- Minimum kitchen exhaust: 100 CFM intermittent or 5 ACH continuous.
- Minimum bathroom exhaust: 50 CFM intermittent or 20 CFM continuous.
- Minimum MERV for filters: 6 or higher.
- Discourages unvented combustion appliances (must meet strict emissions).
Indoor Air Quality (IAQ) Investigations
- Office Conditions: Housekeeping practices, vacuuming frequency, carpeting/drape cleaning, waxing, dust levels, pesticides, moisture intrusion.
- Air Quality Characteristics: Odor, dryness, humidity, dust, temperature fluctuations (between offices, floors).
- Recent Changes: Workspace alterations, office changes, building changes.
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