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HHI-Pedia

Passive Solar? Poly Moisture Barrier?

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Absolute Humidity	The weight of water in a given volume of air.
Absorbents	Granular substances that help clean up stains and spills without solvents or chemicals.
Accidental Pressure	An air-pressure difference between the indoors and the outdoors.
Accidental Ventilation	Random air movement into and out of a house.
Activated Alumina	A form of aluminum oxide used as an adsorption material in air filters.
Activated Carbon	A form of carbon used as an adsorption material in air filters.
Adsorption	The adhering of a gas onto the surface of a substance.
Adsorption Filter	A filter that removes gases from the air.
Air Changes Per Hour (ACH)	The number of times the volume of air in a house is replaced with outdoor air during an hour.
Air cleaner	There are several different types, but these useful appliances are no substitute for good cleaning and other preventive measures.
Air Handler	A cabinet containing a fan, usually used to describe a fan cabinet that moves air through a system of heating/cooling ducts.
Air-pressure Difference	The dissimilarity in air pressures between two locations that can cause air to move between them. See also positive pressure and negative pressure.
Air-to-air Heat Exchanger (AAHX)	A balanced ventilation device capable of transferring heat (and sometimes moisture) between two airstreams.
Airtight Construction	A building technique that results in a house with a small Effective Leakage Area (ELA).
All-cotton	Understand the claims on the labels of your all-cotton items.
All-natural	Be discerning. All-natural doesn't necessarily mean all-safe.
Allergen slipcover	These bedding accessories are a must for people with severe asthma or allergic sensitivity to dust mites.
American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE)	A professional organization that sponsors research and sets voluntary standards for the ventilation industry.
Anti-bacterial products	The scientific debate continues over whether soaps, sprays and wipes may end up doing more harm than good.
Asbestos	A wide range of building materials may contain asbestos, particularly where insulation or heat and fire resistance are essential to safe construction.

The Healthy House Institute's HHI-Pedia tool is currently in public beta.  We currently have 113 listings consisting of approximately 31,081 words.  Please report any issues here.

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