NAFA Certified Air Filter Specialist (CAFS) 2025 – 400 Free Practice Questions to Pass the Exam

Electrostatic air filters are designed to capture particulate matter from the air by utilizing static electricity. They are reusable, which differentiates them from many other types of air filters that are meant to be replaced regularly. Over time, dust and contaminants build up on the filter's plates, which can reduce their efficiency.

To maintain their effectiveness, it is necessary to periodically wash and clean these filters. This maintenance not only helps in restoring their electrostatic properties but also ensures that the air quality remains high as they function optimally. Regular washing helps remove the accumulated particles, allowing the filter to continue to attract and capture additional particles efficiently without needing a full replacement.

Routine maintenance practices for electrostatic filters facilitate their durability and ongoing performance, making periodic washing and cleaning essential for their upkeep.