For more information about indoor air quality, visit some of the following links:
US Environmental Protection Agency
Basic Information About Indoor Air Quality
http://www.epa.gov/iaq/ia-intro.html
American Academy of Allergy Asthma & Immunology
Staying Ahead of Spring Allergy Season
http://www.aaaai.org/patients/topicofthemonth/0305/
Allergen information
2005 Spring Allergy Capitals
http://www.aafa.org/display.cfm?id=9&sub=103&cont=455
Tax credits are available for heating and cooling systems purchased between January 1, 2006 and December 31, 2007. To learn the full details regarding the tax credits, talk to your tax professional about EPACT tax credits or visit Energy Tax Incentives for more information.
http://www.energystar.gov/index.cfm?c=products.pr_tax_credits