CSB (US Chemical Safety Board) identified 281 combustible dust incidents between 1980 and 2005 that killed 119 workers. injured 718 others and damaged several industrial facilities. These incidents occurred in 44 states. many different industries and involved a variety of different materials. https://www.roneverhart.com/Cho-Pat-Tennis-Elbow-Strap-Tennis-Elbow-Strap-Small-5623/