How can regular maintenance practices help prevent refrigerant contamination?

Regular maintenance practices are crucial in preventing refrigerant contamination. This includes regularly checking and maintaining system components, such as filters, coils, and valves, to ensure they are clean and free from debris. Technicians should also perform routine leak tests, inspect the system for signs of wear and tear, and replace components as needed. Furthermore, regular refrigerant analysis can help detect contaminants early, allowing for prompt corrective action to be taken.