Each dust mite lives for approximately 30 days and produces about 20 fecal pellets per day. During that time, females may have added 30 new dust mites to the population.
About 10% of the population is allergic to dust mites. About 80% of asthmatic children are allergic to dust mites.
Although many substances in dust can trigger allergic symptoms, the most important indoor allergens are dust mites, pet dander, cockroaches, and molds.
Some dust is present in every home, regardless of how often or how thoroughly the house is cleaned.
