11.   For instance, while asbestos fibers wreak havoc in human lungs, they barely affect lung tissue in mice.

12.   He urged the Trislers to move out and leave all their belongings until the hazardous asbestos fibers could be cleaned up.

13.   He said that one of the lowest risks would be from inhaling asbestos fibers, if any were released when the towers fell.

14.   If not wetted down and properly contained, asbestos fibers can become airborne for long periods of time.

15.   In the silence, workers using the reformulated Monokote say they stopped wearing the cumbersome respirators designed to block asbestos fibers.

16.   It was hazardous when asbestos fibers were released.

17.   Lawyers who retrieved files were required to wear safety clothing and respirators to protect against asbestos fibers dislodged during the fire.

18.   Nailing will break up the asbestos cement, and could release asbestos fibers to the air.

19.   Once the difficult, unpleasant and unsafe work of removing the insidious asbestos fibers has begun, the men spend relatively little screen time actually cleaning up.

20.   Over the next two days, the foam soaks into the fireproofing, selectively attacking and destroying asbestos fibers.