Best Air Pleated MERV Rating 8, 90-Day furnace Air Filter, 18x18x1 In. (Actual size 17.75 x 17.75). Effective Against Bacteria, Pollen, Dust/Lint and Mold Spores. This filter reduces up to 75% of large airborne particles.

• Lasts up to 90 days
• MERV 8
• Mechanical media maintains the minimum listed efficiency through the life of the filter
• Effective against the following common contaminants: pet dander, mold spores, dust mite, pollen, household dust, as well as debris and lint