Filtrete™ Allergen Defense Filter (MPR 1000)

Filtrete pleated allergen-grade air filter with MPR 1000 (≈MERV 11). Captures dust, lint, mold spores, pollen, pet dander, and bacteria. Available in 1", 2", and 4" depths. Made by 3M. What MPR 1000 actually means. MPR 1000 is roughly equivalent to MERV 11. The electrostatically-charged synthetic media captures finer particles than basic pleated filters — pet dander, mold spores, fine dust, and a portion of bacteria-carrying particles — while remaining airflow-friendly for most residential systems. Who it's for. Residential and commercial buildings where occupant comfort, allergy reduction, and bacteria capture matter — without overloading the blower. When to replace. Every 90 days for 1" filters; every 6–12 months for 4" filters depending on use. Inspect monthly — if light no longer passes through the pleats, it's time to change. Sold in cases of 4. Order quantity must be a multiple of 4. Cases ship in original 3M packaging. About this product line. RememberTheFilter carries genuine 3M-manufactured Filtrete filters in original packaging — not third-party knockoffs or relabeled imports. Ships from our distribution network, typically next business day.