The MERV 11 Plus Carbon air filter is a convenient pleated air conditioner furnace filter that has been impregnated with activated carbon and will help to eliminate unwanted pet and home odors as well as reduce the dust in your home or office. With each pass through the pleated filter, the air in your living environment improves. Our high efficiency activated carbon filter will absorb hold odors from smoke, pets, garbage, bathrooms, litter boxes and cooking in the millions of microscopic carbon pores. Odorous gases and vapors (VOC) are attracted to and held by the activated carbon material. The MERV 11 electrostatic filters help trap airborne particles to protect your family from pollen, household dust, mold spores, and dust mites. The Nordic Pure anti-microbial media will not permit the growth of bacteria or mold, therefore, making your breathing environment healthier. The Nordic Pure allergen reduction pleated air filter has a Minimum Efficiency Reporting Value(MERV) of 11 which means that it will collect more than 85-Percent of 3.0-10.0 microns of contaminants and up to 80-Percent of particles 1.0-3.0 microns. The MERV 11 pleated air filter is comparable to MPR rating of 1000. Nordic Pure air filters have an actual size that is a fraction of an inch smaller than the nominal size. With the 4-Inch and 5-Inch air filters there is a wide variance between the nominal size and actual size. Almost ALL filters have a different actual size than the nominal size printed on the filter so it is best if you measure your filter for the EXACT size and compare it to our "Actual Size. This is why we ask you to measure your filter so you aren't surprised if the filter doesn't fit! Our MERV 11 four or five inch air filter should be changed at least every 6 months depending on your environment. Changing your air filter at the recommended time will help maintain a healthy environment as well as keeping your air conditioning and heating systems running efficiently.

• Actual size of carbon air filter: 19 1/2 by 24 1/2 by 3 5/8
• One convenient air filter - MERV 11 pleated plus activated carbon
• Odor absorbing activated carbon
• A simple solution for controlling both odors and dust particles
• Nordic Pure Manufacturer Direct since 1960 - Made in the USA

Actual size of carbon air filter: 19 1/2 by 24 1/2 by 3 5/8Nordic Pure