Though rated as a medium-efficiency filter, the Accumulair Platinum filter has special electrostatic filtration that is almost equal to that of a true HEPA filter, and it achieves a 60-65% dust spot efficiency.
Given a MERV 11 rating, this filter uses electrostatic filtration to remove 65-79% of air pollutants ranging in size from 1. This means that it removes a large bulk of particles like dust mites, bacteria, pet dander, pollen, smoke, and mold spores. Filter; Pack Of 2 Not only do the co-polymer micro-fibers help produce higher efficiency, but they are also hydrophobic, which means the filter does not absorb moisture and will not support the growth and spread of microbes like mold, mildew, bacteria, and fungi.