 Did you know that 63% of homes contain allergens from cockroaches and that mice spread potent asthma triggers found in 82% of homes? It's true. Common household pests are major offenders on the list of indoor allergens. Learn what you can do to help your family breathe easier. Visit pestworld.org. A public service message from the National Pest Management Association and the Asthma and Allergy Foundation of America.