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The Lennox 98N43 MERV 8 Pleated Furnace Filter is the correct replacement for all furnaces that require a 20x20x1 filter. Lennox Healthy Climate filters remove particles and bioaerosols as small as 3 microns.
Lennox 98N43 MERV 8 Pleated Furnace Filter specifications:
MERV 8 pleated air filters reduce airborne allergens such as pollen, mold spores, dust, pet dander, bacteria, and particles that carry viruses.