Asbestos Fiber Is A Silent Killer! How do you know that your home, school, church or office building is safe from deadly asbestos? And why should you care? Cancer, that’s why. Asbestos that is disturbed releases undetectable fibers into the air, and these fibers are silent killers. Damaged asbestos material releases harmful fibers that remain in the air long after they are disturbed. These fibers cause asbestosis, mesothelioma, and lung cancer. What asbestos removal insurance do you need?