Asbestos is used in over 3000 modern products and most people have suffered at least some degree of exposure to it at one point or another. Most asbestos exposure is limited to minute portions of well maintained building materials such as concrete, insulation and siding. Regular maintenance of these materials is important for preventing asbestos from degenerating into airborne fibers. Unfortunately, because asbestos is so widespread, it is impossible to compute the damage that even a small quantity can cause.