Asbestos becomes dangerous when it breaks into pieces small enough to enter deep into the lungs. In manufacturing industry the word "friable" means that the asbestos can be crumbled to dust by hand. "Non-friable" is the term used to describe the asbestos product that cannot easily be broken into small pieces. Non-friable material can still become hazardous. For instance floor tile is non-friable, but if cut with a tile saw, can become "friable" and hazardous.
The important thing to remember is that asbestos that cannot be seen is the most harmful. Asbestos that is so small it can float for long periods of time in the air is almost invisible.
Not only are these asbestos fibers easy to inhale, a person is usually not aware that the danger is present. The tiny pieces of asbestos are able to travel deep within the lungs before they become lodged in the tissue. Researchers have learned that asbestos does not produce any immediate symptoms such as headaches or sore muscles. The effects show up 15-40 years later. The longer the period of time that a person is exposed to asbestos fibers, the higher the risk of developing lung disease later in life. The three most common types of disease caused by asbestos exposure are mesothelioma, lung cancer, and asbestosis.
The information provided in this site is general in nature and constitutes neither legal nor medical advice. If you are concerned that you or someone you know is at risk of an asbestos-related disease, please consult your physician and an attorney experienced in asbestos litigation cases.