What causes indoor air pollution?

Many everyday household items contribute to poor indoor air quality. Compounds found in carpeting, furniture and upholstery and drapery fabric consistently emit gas or fumes. Other sources of pollutants can include, but are not limited to, cleaning agents, paints and personal care products. Also, newer homes that are tightly sealed for energy efficiency tend to limit air circulation, which can contribute to a buildup of contaminants. Likewise, things like weather stripping and storm doors keep stale air in and fresh air out.