During fifteen years of research, it has been found that fiberglass does not cause cancer. This is because inhaled fibers would promptly disappear, with no damage to the person's health.
Fiberglass and cancer are directly related to each other. As it is used for thermal insulation so it is commonly used and the average time for the development of cancer is 2 years. But ratio of cancer development is less i. e 10:1.
There are no studies indicating a correlation between fiberlgass usage, or exposure, and cancer. One rat study did show an increased risk of cancer when fiberglass was implanted into lungs.
