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September 8, 2022

Asphxiation incident

Employees were tasked to fill a series of Chart MVE 1842P-150 Cryogenic Freezers in an enclosed storage room on a weekly basis. The room was not equipped with an adequate engineered ventilation system or oxygen monitoring equipment or system. On the evening of November 20, 2019, an employee began topping the bulk tanks off with liquid nitrogen when the room became filled with nitrogen gas causing the employee to collapse and eventually succumb to the oxygen-deficient atmosphere created in the room. The room was not equipped with an adequate engineered ventilation system or oxygen monitoring equipment or system. This condition exposed an employee to an oxygen deficient atmosphere while filling bulk tanks with liquid nitrogen. 

Source:OSHA.gov

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