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indoor air quality
in·door air qual·i·ty


noun 
Definition:
 
nature of air in buildings: the condition of the air inside buildings, including the extent of pollution caused by smoking, dust, mites, mold spores, radon, and gases and chemicals from materials and appliances
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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