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Atomic Filters Carries a Large selection of Home Air Filters by Trion and compatible replacements for Trion Air Bear Furnace Filters at discounted prices.Trion is a leader around the Globe in Indoor Air Quality Products. Since 1947, millions of products have been installed in homes all over the United States, North America, and around the world. Having a proven a reliable performance history of high quality and dependable products, Trion offers you the right products to assist you in meeting your goals for home indoor air quality. Whether you're looking for a simple system to meet the minimum requirements of furnace manufacturers' warranty (Trion's Air Bear Supreme), high efficiency systems that provide superior performance (Trion's HE Plus), humidity for energy savings or to provide moisture (Trion Humidifiers), or a combination of both, Trion products are here for you.

Trion Furnace Filters help reduce energy cost

If you have ever turned up your thermostat in the winter when you were cold in your house, even though your thermostat was set at 72 degrees. This is because, without the proper humidity in your home, it can feel up to eight degrees cooler.

Just like humid summer days create a heat index hotter than the actual temperature, too little humidity has the opposite effect in the winter and can make your home feel colder than it really is. Using the properly sized and selected Trion Steam, Evaporative or Atomizing Humidifier is just one thing you can add to your home to make it feel warmer inside without turning the thermostat up. Depending upon your normal winter indoor humidity levels, you may find with a properly selected Trion Humidifier that you can turn your thermostat down by five degrees and still have it feel warmer than it did last winter. According to several utility companies, a five degree lower setting on your thermostat can reduce the amount of energy required for heating by up to 15%.

Trion Filters For Better Health

 Studies by the EPA and numerous medical experts indicate that when humidity levels are below 30%, these conditions can occur: Dry Skin, Chapped Lips, or Dry Eyes in the winter. Humidifying your home's air between 30% to 50% is one of the recommended treatments. American Lung Association cautions that humidity levels over 50% can lead to the growth of biological organisms such as dust mites that can cause allergic reactions and asthma symptoms. Additional medical studies indicate that the Flu virus survives longer in indoors environments, such as your home when humidity levels are low. The use of a properly sized and selected Trion Steam, Evaporative, or Atomizing Humidifier is one step in increasing your winter-time comfort. 


Nominal Vs. Actual Sizes: Finding the Right Air Filter Size

Buying the Correct Size Air Filter- The Most Important Thing to Know 

When you are buying your air filter online most important thing to know is Air Filters have two sizes that you need to understand the Nominal size and the Actual Size. Not understanding these numbers often leads to consumers purchasing a filter that does not fit their Furnace or HVAC system. See the complete list of Air Filters by Size Rating and Brand.

Nominal vs Actual air filter size by Atomic


Understanding Nominal Filters Size Could Save You Time and Money

Not understanding the Nominal Filter Size is the primary culprit for incorrectly purchased filters.The Nominal Size is the usually the dimensions used to Label the filter. For instance 16x20x1. These dimensions are a rounded value on the filters actual measurements. The actual measurements on this filter may be 15.5x19.5x.75, but that could vary by brand and manufacturer. So in order to make sure you have the correct size filter, especially if you are replacing with a different brand it is important to confirm the actual size on the filter. When purchasing filters on the internet the Nominal size is usually found in the product title.

Actual Filter Size- The Key to Making the Right Replacement Filter Purchase

The actual size as you might have guessed are the actual dimensions of the filter by length, width and thickness. This size is often on the filter right below the Nominal size and is usually labeled as the actual size. When you are buying a filter online the actual size is sometime in the product bullet point or the product description. If your filter does not have actual dimensions on the outside of the filter, you can measure you filter to get the correct dimensions. Some brands have a foam gasket on the outside of the filter, in this case, you will want to make sure you have a compatible actual size and that it also has the foam to ensure a snug fit. 

Lennox Air Filter X0851 with Foam strips

Examples of Nominal and Actual Sizes

 Size  Example 1  Example 2
Nominal Size 20x20x1 16x20x1
Actual Size 19.5x19.5x.75 15.75x19.75x.75


 Furnace filters should fit securely but should not have to be forced into position. If you have to force the filter into its slot, then it is probably too big. Forcing an improper filter size in a filter can cause it to buckle, damaging the filter or reducing its ability to function properly. Filters are a smaller than their slot to allow for easy replacement. Some HVAC units may need a filter with dimensions that are unique or uncommon. In these cases, a custom filter needs to be ordered.

Find Your Filter Sizes Easy in 1" Deep Filters , 2" Deep Filters, 4" Deep Filters