Term
Ground Source Moisture
--Source Control--
--Ventilation--
--Filtration-- |
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Definition
--Source Control--
Best solution: control surface water, seal foundation, install crawl space moisture barrier
--Ventilation--
Partial solution: use after all source control measures have been enacted
--Filtration--
No effect. |
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Term
Occupant-Generated Moisture
--Source Control--
--Ventilation--
--Filtration-- |
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Definition
--Source Control--
Good Solution: duct dryers and fans to outdoors, cover pans when cooking, avoid use of humidifiers.
--Ventilation--
Good solution: install ventilation equipment with intakes at the sources of pollutants
--Filtration--No effect |
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Term
Biological Contaminants
--Source Control--
--Ventilation--
--Filtration-- |
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Definition
--Source Control--
Partial solution: but only limited effect because of widespread occurrence of organisms.
--Ventilation--
Best solution: use ventilation to lower humidy levels and discourage growth.
--Filtration--Limited effect. |
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Term
Formaldehyde and other Volatile Organic Compounds
--Source Control--
--Ventilation--
--Filtration-- |
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Definition
--Source Control--
Best solution: use low-emission building materials, avoid storing chemicals indoors.
--Ventilation--
Partial solution: but higher ventilation rates may be required while new materials out-gas.
--Filtration--Limited effect. |
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Term
Carbon Monoxide and other Combustion By-Products
--Source Control--
--Ventilation--
--Filtration-- |
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Definition
--Source Control--
Best solution: confirm that combustion appliances are vented properly. Install sealed combustion equipment when possible.
--Ventilation--
Unsafe option: combustion appliances should never allow spillage into the home.
--Filtration--No effect. |
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Term
Carbon Dioxide and other Occupant-Generated Effluents
--Source Control--
--Ventilation--
--Filtration-- |
|
Definition
--Source Control--
Not practical: higher occupancy creates more pollutants
--Ventilation--
Best solution: install ventilation equipment with exhaust pick-ups near the sources of pollutants
--Filtration--Not practical. |
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Term
Asbestos, Lead, and other Particulates
--Source Control--
--Ventilation--
--Filtration-- |
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Definition
--Source Control--
Best solution: avoid use of these materials. If present, protect from damage.
--Ventilation--Not practical
--Filtration--Not practical |
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Term
Radon, Methane, Fertilizers, & Other Soil Gases
--Source Control--
--Ventilation--
--Filtration-- |
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Definition
--Source Control--
Best solution: seal foundation and provide sub-slab ventilation if needed.
--Ventilation--
Partial solution: but it's expensive at required ventilation rates.
--Filtration--Not practical. |
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Term
Tobacco By-Products
--Source Control--
--Ventilation--
--Filtration-- |
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Definition
--Source Control--
Best solution: don't smoke indoors.
--Ventilation--
Partial solution: but it's expensive at required ventilation rates
--Filtration--Partial solution. |
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