At approximately 9:50 a.m. on October 24, 2012, Employees #1 and #2 were working as mechanical engineering technicians at a food cold storage facility. The two workers were troubleshooting a Hansen Technology Model AP08 Auto-Purger. The Auto-Purger removed non-condensable material from the refrigeration system. It was mounted on a wall inside the facility’s anhydrous ammonia compressor room. At the time of the accident, the unit was actively running and leaking liquid onto the floor. The liquid, which contained anhydrous ammonia, was corrosive.