The frame has 2 strips of foam tape on 2 sides
MERV 10 Plus Carbon air filters are comparable to air filters with the rating of MPR 900-1000
Nordic Pure 12x18x1 MERV 8 Plus Carbon air filters are made of a dual material where the MERV rated material has been fused together with a carbon layer
This high-performance HVAC replacement filter will outperform non-electrostatic fiber-glass filters
16x21 1/2x1 Exact MERV 13 Plus Carbon AC Furnace Filters Furnace Air Filters The frame has 2 stripsActual Size: 16 x 21 1 2 x 3 4 (16 x 21. 5 x 0. 75) Removes lint, household dust, pollen, smoke particles, dust mites, pet dander, smog, virus carriers, mold spores, help eliminate unwanted odors and other contaminants. Ideal for customers looking for superior filtration but needing an odor control element Hypoallergenic, antimicrobial, and electrostatic filter media. Moisture resistant frame. Nordic Pure MERV 13 is equivalent to MPR 2200 2400 Made in