20 x 25 x 1 Air Filters

Five 3M Filtrete tiers are available in the 20 x 25 x 1 size — a genuine good/better/best ladder that lets you match filtration level to your household's actual needs.

Filtrete 600 Dust Defense (MPR 600 / MERV 8) — from $53.72. Entry-level protection. Captures large dust particles, lint, and debris. Good for protecting your HVAC system and basic household dust control.

Filtrete 1000 Micro Allergen & Dust Defense (MPR 1000 / MERV 11). Adds pollen, pet dander, dust mite debris, and smoke to what the 600 captures. The most popular everyday choice for allergy-conscious households.

Filtrete 1500 Ultra Allergen Reduction (MPR 1500 / MERV 11). Finer particle capture than the Micro Allergen — better performance against smaller pollen particles and fine dust.

Filtrete 1900 Ultimate Allergen, Bacteria & Virus Defense (MPR 1900 / MERV 13) — $106.60. The strongest option in this size. Captures everything below, plus airborne bacteria and virus-carrying particles. Recommended for households with respiratory sensitivities or immunocompromised members.

All filters are rated for a 3-month service life. Not sure which tier fits your situation? Call 1-800-277-3458.