At 12:45 p.m. on July 5, 2022, Employee #1, 46, and his coworker cleaned a baghouse on a roof. The employee was wearing a Tyvek suit, KN95 respirator, and a safety harness when he made an entry into a steel baghouse, which is a confined space. National Weather Service reported conditions of 93 degrees F, Dew Point 70, and a heat index of 100 degrees at the time of the incident. The ambient air temperature, the black rubber/tar roofing material, and the steel vessel Employee # 1 entered while wearing a Tyvek suit all contributed to the employee’s core temperature increasing > 105 degrees.
