In most refrigerant accidents where death occurs the major cause is?

In most refrigerant accidents where death occurs, the major cause is asphyxiation due to the displacement of oxygen in the air. Refrigerants can be colorless and odorless, making it difficult for individuals to detect their presence. When released in large quantities, these substances can lead to a rapid decrease in breathable air, resulting in unconsciousness and, ultimately, death. Additionally, some refrigerants may pose toxic risks or contribute to explosive environments if not handled properly.