Nordic Pure MERV 12 Air Filters are crafted to capture over 90% of airborne particles between 3.0-10.0 microns, effectively filtering out lint, dust, pollen, pet dander, and mold spores. Additionally, these filters remove 80-90% of finer particles as small as 1.0-3.0 microns, providing enhanced indoor air quality. Made with electrostatically charged synthetic materials, each filter is built with a sturdy, moisture-resistant frame and reinforced with metal mesh support for durability and efficient performance in HVAC systems. Replace filters regularly to sustain optimal air quality and HVAC efficiency, especially in households with pets or high traffic.