Replacement media filters for the Dynamic Polarized Media Electronic Air Cleaner. The Dynamic Polarized Media Electronic Air Cleaner installs directly into the 1” filter rack(s) in the existing heating and cooling system. Its electronically enhanced media combines elements of both electronic and media air cleaners. Particles are electrically charged (polarized) and then collected in the high efficiency media. Polarized sub-micron particles join with other particles and are collected on subsequent passes