Introduction to sick buildings -- IAQ hazards to human health and productivity -- HVAC basics and indoor air quality -- Improving ventilation -- Improving filtration : recycling air -- Controlling humidity and moisture -- The value of duct cleaning -- Putting it all together : the IAQ program -- Mold : potential threats sprout in a watery world -- Appendix I - Trade associations, organizations and publications -- Appendix II - IAQ, HVAC and energy terms and definitions -- Appendix III - Manufacturers, suppliers and service providers -- Appendix IV - IAQ forms for practitioners and facilities managers.