The mite can produce up to twenty droppings a day, which means approximately 2000 during its active lifetime of up to 3 to 4 months. From eggs to breeding adults, mites pass through six stages of life. The adult female can lay from 60-100 eggs depending upon living conditions, which ideally for breeding mites are warm dark and damp. Most modern conventional beds provide perfect breeding conditions. An important fact to note; the house dust mite's biological make-up is 75% water. It must maintain this moisture content to breed. Reducing moisture is a threat to its existence.
The Biology of Allergenic Domestic Mites, An Update', Barbara J. Hart,1995 'Clinical Reviews in Allergy and Immunology ', Vol.13, pages 115 to 133. Humana Press Inc,
'A Major House Dust Mite Allergen Disrupts the Immunoglobulin E Network by Selectively Cleaving CD23, Innate Protection by Antiproteases', Hewitt CRA, Brown AP, Hart BJ, Pritchard DI, 'J.Exp.Med.'; 1995, 182, pages 1537 to 1544