Aprilaire Healthy Home 213  Air Filter  MERV 13  The Aprilaire Healthy Home 213 MERV 13 is part of the Air Filters test program at Consumer Reports. In our lab tests, Furnace Filters, Air Conditioner Filters & Air Filters models like the Healthy Home 213 MERV 13 are rated on multiple criteria, such as those listed below.  Dust, pollen, smoke removal (high) Dust, pollen, smoke removal is how well a model cleared air of fine clay dust and cigarette smoke when operating at its highest speed. A model that scores well for dust removal should perform comparably for pollen.  Dust, pollen, smoke removal (low) Dust, pollen, smoke removal is how well a model cleared air of fine clay dust and cigarette smoke when operating at its lowest speed. A model that scores well for dust removal should perform comparably for pollen.  Airflow resistance Airflow resistance reflects how freely air passed through the unit.