What Type of Particles Does a 20x20x4 Air Filter Remove from the Air?

In addition to eliminating common contaminants such as dust, pollen & lint; improved filtration efficiency of MERV 11-rated 20x20x4 air filter allows you to eliminate smoke & pet dander. Learn more about HEPA filters & their cumulative effect.

What Type of Particles Does a 20x20x4 Air Filter Remove from the Air?

In addition to eliminating common contaminants, such as dust, pollen, lint, and mold, the improved filtration efficiency of a MERV 11-rated 20x20x4 air filter allows you to eliminate smoke, smog, coughing and sneezing particles, and pet dander. This is important because, according to the Environmental Protection Agency (EPA), the concentration of indoor air pollutants can be two to five times higher than the concentrations normally found outdoors. The EPA states that an effective, adjusted air conditioning filter can also help filter indoor air when outdoor air quality is poor. We measure how well an air filter removes dust, pollen, and smoke from the air, and we check how freely the air flows through the filter at any fan speed. We also calculate the annual costs of replacement filters, based on the manufacturer's recommendations on when to change them.

It may be cheaper to buy filters in bulk.PurAward filter is one option that uses copper and silver ions to protect us from bacteria, mold and virus particles. Ozone is another option; however, air cleaners should not release ozone emissions. Ionizing air purifiers can create ozone as a specific method to purify the air.

HEPA Filters for Allergens and Pollutants

HEPA filters are a great option for people who want to remove common allergens and pollutants from the air. We recommend replacing the filter regularly to ensure that the air is kept clean, energy costs are reduced, and that the oven is operating properly.

If your air conditioning system uses a thicker filter (usually 4 to 5 inches and is usually mounted on the air controller), it is likely that it was specifically designed for medium-efficiency MERV filtration. Air cleaners have several filters that serve a variety of purposes and focus on different sizes and types of contaminants. If your goal is to significantly improve indoor air quality, it's certainly worth investing in an air purifier. But those are rare circumstances, and the decision to pay more for a better filter or not depends mainly on whether cleaner air is a priority for you or not.

High MERV Ratings with Low Pressure Drop

We believe that the concerns of manufacturers are a bit exaggerated, in part because a recent innovation in air filters allows for high MERV ratings (11 to 1) with a low pressure drop. They take a while to fully filter the air in a room, so if you're going to enter an area with a small air purifier, it can take a couple of hours before the air in the room has been completely “cleaned”.The best filters trap indoor pollutants such as dust, pet dander, and pollen and help clean the air in your home so you can breathe better.

The air is charged with particles, passes through the filter only once and the results are measured. Compared to the cheapest basic filters available, medium-efficiency MERV filters such as Nordic Pure MERV 12 can significantly reduce airborne dust, mold spores, pollen, and even smoke; doing so can help alleviate respiratory conditions according to an NIH study.

Cumulative Effect of Filters

When used in real-world scenarios because the air in your home is constantly recirculating through ducts and through filters each time, the cumulative effect of the filters increases. This means that over time you will be able to enjoy cleaner indoor air quality.

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