The MRCOOL MRFILTER01 MrBreeze Replacement Filter is a replacement air filter designed for the MRFAN36 MrBreeze air handler. It captures dust, pollen, pet dander, and other airborne particles as air passes through the HVAC system, helping maintain cleaner indoor air while protecting internal components from debris buildup. Regular filter replacement supports consistent airflow, improv... https://www.partshnc.com/mrcool-mrbreeze-replacement-filter-mrfilter01