When working with refrigerant systems, technicians should always follow proper safety guidelines and protocols. This includes wearing personal protective equipment, such as gloves and safety glasses, and ensuring good ventilation in the work area. Technicians should also be aware of the risks of refrigerant exposure, electrical shock, and other hazards associated with HVAC systems. It’s essential to follow established procedures for handling refrigerants, and to ensure that all tools and equipment are properly calibrated and maintained.