Nordic Pure MERV 10 Air Filters are engineered to capture over 85% of airborne particles ranging from 3.0-10.0 microns, including lint, dust, pollen, pet dander, and mold spores, while also effectively removing 50-64% of particles as small as 1-3 microns. Each filter is built with a moisture-resistant frame and metal mesh support to ensure durability and optimal performance in HVAC systems. Replace regularly to maintain peak air quality and system efficiency.