Where are filter driers typically used?

Filter driers are essential components in refrigerant systems, primarily used in air conditioning and refrigeration applications. Their primary function is to remove moisture and contaminants from the refrigerant, ensuring that the system operates efficiently and effectively. Moisture can lead to corrosion and other damage within the system, while contaminants can impair performance or even cause mechanical failure. By integrating filter driers, refrigerant systems maintain optimal operation and longevity, making this application the most relevant and critical among the provided options.

While filter driers might seem relevant in other contexts, such as automotive engines or water supply lines, those systems typically utilize different filtration or drying technologies tailored to their specific requirements. Electrical circuits, on the other hand, do not involve the need for moisture removal as part of their functioning, further highlighting the specialized role of filter driers in refrigerant systems.