It's a world we barely see, but it is teeming with life. In the dust of a typical house, carpet beetles, mites, silverfish, and other creatures live and die, producing allergen-laden dust. Meanwhile, stinky mold, bacteria, and yeast lurk undetected in heating and cooling systems. Debris dispersed into the air from these organisms can cause runny noses, itchy eyes, coughing, headaches, and breathing difficulties. Some people, especially those made highly sensitive by allergies, suffer from devastating health problems and worry that, as one such sufferer lamented, "My house is killing me!"

Scrutinizing house dust and air samples with a microscope, indoor-air-quality expert Jeffrey C. May has spent his career helping people identify what's causing their chronic health problems. In this thoroughly revised edition of My House Is Killing Me! Jeff and Connie May draw on the dramatic personal stories of their clients' suffering and relief to help listeners understand the links between environmental factors and human health. Explaining how air conditioning, finished basements, and other home features affect indoor air quality, the authors offer a step-by-step approach to identifying, controlling, and often eliminating the sources of indoor pollutants and allergens.