NaturalAire High Efficiency Air Filter, MERV 11, 16 x 20 x 5-Inch, 2-Pack 2 Pack of high performance synthetic air filters to help eliminate dust and contaminants MERV 11 rating: Removes household dust, pollen, dirt, mold spores and more Self-sealing gasket for better airflow control Deep V-pleats provide large media surface area for more effective filtration while keeping airflow resistance low Compatible with HVAC systems requiring filters sized 16" x 20" x 5"