21x23 1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 16x25x2 a human hair is about

a human hair is about 70 microns wide

Replaces Honeywell 16x25x4 and filters with an MPR rating with an actual depth of 4 3/8 and ideal for helping keep equipment working efficiently and reducing odors

We recommend the window air conditioning filter 15 x 24 x 1/4 cut to size UL Class 2 rated be replaced approximately every 30 to 60 days for fresh clean air for your family and home

Nordic Pure 16x25x5 Air Bear Replacement MERV 13 air filters measure an actual depth of 4 7/8"

Actual Size: 9 1/2 x 15 1/2 x 3/4 (9

21x23 1/4x1 Exact MERV 13 Plus Carbon AC Furnace Filters 16x25x2 a human hair is aboutActual Size: 21 x 23 1 4 x 3 4 (21 x 23. 25 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