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The NORDIC PURE 20x22x1PM12C-4 is a pleated MERV 12 air filter with an integrated activated carbon layer, sold in a 4-pack for residential and light commercial HVAC systems. The dual-material construction fuses a MERV 12-rated filtration media with an activated carbon layer, reducing flow restriction while delivering 33% more surface area compared to standard pleated designs. The activated carbon attracts and holds odorous gases and volatile organic compounds (VOCs), while the electrostatically charged pleated media captures airborne particulate. Nominal size is 20x22x1 with an actual size of 19.5 x 21.44 x 0.75 inches. Installation is handled by HVAC technicians or knowledgeable homeowners during routine maintenance.
This filter is suited for forced-air heating and cooling systems in residential homes and light commercial spaces where both odor control and high-level particulate filtration are needed. It captures lint, household dust, pollen, smoke particles, dust mites, pet dander, virus carriers, mold spores, bacteria, and allergens. The MERV 12 rating makes it a strong choice for occupants with allergies or sensitivities, and for environments with pets, smokers, or ongoing renovation activity. Nordic Pure rates this filter equivalent to MPR 1500-1900. Replacement interval is every 30 to 90 days depending on indoor and outdoor conditions.
Designed as a replacement furnace and air handler filter for standard 1-inch filter slots with a nominal size of 20x22x1. Verify the actual opening dimensions against the stated actual size of 19.5 x 21.44 x 0.75 inches before installation, as nominal and actual sizes differ across equipment brands.
Power down or set the thermostat to off before replacing the filter to prevent unfiltered air bypass during the swap. Note airflow direction arrows printed on the filter frame and align them with the direction of airflow toward the blower. Filters should be checked monthly and replaced every 30 to 90 days based on system runtime and environmental conditions. Do not wash or reuse this filter.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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