The Filter provided is a MERV 6 Activated carbon pre-filter. MERV means Minimum Efficiency Reporting Value and is a measurement of an air filter’s effectiveness. MERV ratings go from 1 to 20 with the number’s increasing with the filter’s efficacy. As a pre-filter, a MERV 6 filter is more than effective at keeping out harmful pollutants and allergens and does not cause a considerable increase in static pressure on the furnace.

A MERV 6 pre-filter aids in asthma and allergy relief by trapping particles in the 3.0 – 10.0-micron size range, including:

Dust, Lint, Pollen, Dust Mites, Mold Spores, Pet Dander, Carpet Fiber, and many more.

In this system, the MERV 6 pre-filters at each register work to increase the life and efficiency of the more expensive furnace filter. This allows the furnace filter to trap the smaller particles, which maximizes the indoor air quality(IAQ) in your home.

The removal of gases and odors must also be considered when discussing Indoor Air Quality (IAQ). Odors and gaseous pollutants create an unpleasant environment and can seriously affect health and productivity.

The pre-filter media consists of Activated Carbon, which works to adsorb atoms, ions, and molecules at a molecular level to maximize the removal of contaminants, including gases, odors, chemical vapors, and volatile organic compounds.

If you’re interested, take a further look into the very specific levels of activated carbon adsorption here:

Impeccable Air Activated Carbon Filter Effectiveness

Each filter is coated with an Antimicrobial Disinfectant that works 24/7 to prevent growth of bacteria, fungi, algae, yeasts, and viruses with a 99.9% effectiveness on a wide variety of treated articles and substrates.

The antimicrobial active ingredient is registered under the EPA, European Biocidal Products Regulation, and many other comparable regulatory bodies around the world.