As a Replacement Pleated Air Filter, it can be used as a substitute for worn-out or damaged filters in HVAC systems. The pleated design of this filter increases its surface area, thereby enhancing its capacity to trap dust particles, pollen, mold spores and other airborne pollutants. Replacement For NORDIC PURE NP FILTER2926 Regular replacement of these filters is recommended for maintaining the optimal performance of HVAC systems in industrial settings.