Designed to work with your heating and cooling systems, it cleans the air throughout the home, capturing up to 95% of fine particles-allergy-aggravating irritants that are easily inhaled deep into the lungs. Highest-efficiency media filter (merv 16/cadr 1900) the filter removes a minimum of 95% of circulated dust and other particles from 0.3 micron and up the filter removes a minimum of 95% of mold spores and other bio aerosols from0.3 micron and up.