3M 16X20X1 2500 MERV 14, Hi Perf Prem 4-pack

A 4-pack of 16x20x1 electrostatic pleated HVAC air filters with 2500 MPR and MERV 14 ratings, trapping 77% of small particles and up to 90% of airborne virus particles. They capture pet dander, smoke, bacteria, lint, pollen, and dust, are certified asthma and allergy friendly, and each filter lasts about 3 months.