HDX 16x25x2 Air Filter, Household Allergens, Pleated, MERV 8, MPR 700 (12-Pack)

3M Filtrete 20 x 25 x 5 Air Filter, Ultra Allergen Reduction Deep Pleat , MERV 12, MPR 1550

The Filtrete Ultra Allergen Reduction Deep Pleat Filter is designed for housing units accommodating 5 inch nominal size filters and is for residential use. It attracts and captures particles like pollen, mold spores, and dust mite debris.

HDX 20x20x1 Air Filter, Fiberglass, MERV 2, MPR 300 (12-Pack)

The Fiberglass Air Filter is designed to capture large airborne particles and provide essential protection for your furnace. Fiberglass filters are perfect for furnaces requiring a minimal restriction to airflow.

HDX 16X25X4-3/8 MERV 13, MPR 1900 Pleated Air Filter

The Elite Allergen Air Filter is made of a reinforced pleated media designed to capture particles down to the micro particle level. The large surface area improves the efficiency of its dust-holding capacity. Its electrostatic charge helps attract particles "magnetically" that otherwise would pass through. Housed in a recyclable clay-coated frame, this filter captures particles as small as 0.3 microns. In comparison, a human hair is approximately 100 microns in size. The Elite Allergen is effective against the following contaminants: dust/lint, airborne dust mite debris, pollen, pet dander, mold spores, bacteria, microscopic allergens, virus carriers and odor, most smoke and smog particles.

HDX 16x25x1 inch MERV 9 Air Filter (4-Pack)

Electrostatically charged pleated furnace filter with a MERV 9 Rating. The Pleated Design significantly increases the surface area on which airborne particles can be trapped (as compared to Fiberglass Filters). Great filter for households with dust and pets.