What is one primary concern when handling Al refrigerants regarding safety?

When handling Al (aluminum) refrigerants, one primary safety concern is oxygen deprivation. This is particularly relevant because many refrigerants can cause asphyxiation in confined spaces. For instance, if a refrigerant leaks in a poorly ventilated area, it can displace oxygen in the air, leading to a risk of suffocation. Recognizing the importance of proper ventilation and monitoring for refrigerant leaks is crucial for maintaining safety in environments where these substances are used.

Other concerns, while valid, do not specifically address the primary safety risk associated with refrigerants. High flammability is more applicable to specific types of refrigerants, and not all aluminum refrigerants present this risk. Environmental impact is an important consideration for refrigerants with certain global warming potentials or ozone depletion potentials, but it does not directly relate to immediate safety risks during handling. Corrosiveness could be a concern for equipment and materials, but it does not pose a direct and immediate life-threatening hazard to individuals handling the refrigerants in the same way that oxygen deprivation does.