Clearance 3M Filtrete Allergen Defense Furnace Filter

3M Filtrete Allergen Defense Filters use 3-in-1 technology to trap allergy-triggering particles like lint, dust, pollen, and pet dander plus smog and smoke.

Superior Performance

Filters are constructed from fibers arranged n numerous pleats which creates a larger surface area for trapping particles. Electrostatically charged, these filters attract and capture particles that fiberglass and non-electrostatic filters allow through.

Fibers are not dense enough to restrict airflow so allergens are trapped deeper inside the filter, and clean flows out into your home.

Furnace Filter Dimensions

Single packs are available in these sizes.

• 10-in x 20-in x 1-in
• 12-in x 12-in x 1-in
• 14-in x 30-in x 1-in
• 18-in x 20-in x 1-in 

Filtrete recommends changing your filters every 3 months for optimum performance.