Training Confined space welding tragedy; How can we do better? Originally published on: (The Conversation) HMN-Are we as safety professionals becoming too relaxed during situations like this confined space welding instance? Dillon Wu died alone inside a metal tank. It is believed he was asphyxiated by argon gas, used in arc-welding steel.He is the youngest employee to die in a recent run of deaths in […] Written by Ryan Henry February 12, 2019January 4, 2021