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A four-pack of 3M's MERV 11 pleated furnace and AC filters in the 24x12x1 size. The electrostatic media carries a 1000 MPR rating, which sits in 3M's mid-to-upper tier: stronger than basic fiberglass and low-MERV pleats, weaker than the 1500-1900 MPR allergen and hospital-grade lines. It is a sensible pick for a typical home that wants better dust and pollen capture without the airflow restriction of the highest-MERV filters. Owners rate it well, though a minority report sizing and fit issues in some filter slots.
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Lowest price we've seen: $13.88 on Nov 8 at Walmart. Tracked across 3 stores since Nov 8.
Rated 4.2 out of 5 across 759 ratings, with a large share of buyers giving it top marks. Owners mostly report cleaner returns and less visible dust. Complaints center on fit in some filter slots and on the filter being thicker or stiffer than expected.
This is a set of four 3M air filters for furnace and air conditioning systems. Each filter measures 12 x 24 x 1 inches.
The filters use electrostatic filtration to capture dust and pollen. They are rated MERV 11 and 1000 MPR (Microparticle Performance Rating).
