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Welcome to Clear the air Inc. the webs premier seller of quality replacement furnace filters.  You will find that we have the largest selection of products in all the hard to find sizes.  And if you donít find the size you are looking for just call us for a custom quote.   

Please use the links below or to the left to help narrow your search.  First select the type of filter, then the quality level (see MERV Chart), select your size, and we will ship them to your door for free. 

Clear The Air offers a 100% Satisfaction Guarantee - If you're not satisfied with a product you purchase from us you can return for a full refund - no questions asked. 

1" Pleated Filters 2" Pleated Filters 4" Pleated Filters
Aprilaire Filters Honeywell Filters Trane Perfect Fit Filters
Trion "Air Bear" Filters White Rodgers Filters

Merv 11 2" Furnace Filter 2" Merv 11 Furnace Filter (12 Pack)

Clear The Air Merv 11 filter Removes 91% of airborne particles.  Our Merv 11 filter eliminates allergens such as dust mites, pollen, mold spores, pet dander, dust, and smog.  Our advanced pleat technology provides less air flow resistance, with higher efficiency and lower pressure drop allowing air-handling systems to stay cleaner and operate more efficiently. This filter is Ideal for allergy sufferers.

Merv 11 1" Furnace Filter 1" Merv 11 Furnace Filter (6 Pack)

Clear The Air Merv 11 filter Removes 91% of airborne particles. Our Merv 11 filter eliminates allergens such as dust mites, pollen, mold spores, pet dander, dust, and smog. Our advanced pleat technology provides less air flow resistance, with higher efficiency and lower pressure drop allowing air-handling systems to stay cleaner and operate more efficiently. This filter is Ideal for allergy sufferers.

Merv 11 4" Furnace Filter 4" Merv 11 Furnace Filter (6 Pack)

Clear The Air Merv 11 filter Removes 91% of airborne particles.  Our Merv 11 filter eliminates allergens such as dust mites, pollen, mold spores, pet dander, dust, and smog.  Our advanced pleat technology provides less air flow resistance, with higher efficiency and lower pressure drop allowing air-handling systems to stay cleaner and operate more efficiently. This filter is Ideal for allergy sufferers.

Merv 11 1" Furnace Filter 1" Merv 11 Furnace Filter (12 Pack)

Clear The Air Merv 11 filter Removes 91% of airborne particles. Our Merv 11 filter eliminates allergens such as dust mites, pollen, mold spores, pet dander, dust, and smog. Our advanced pleat technology provides less air flow resistance, with higher efficiency and lower pressure drop allowing air-handling systems to stay cleaner and operate more efficiently. This filter is Ideal for allergy sufferers.

Aprilaire "Space-Gard" Merv 11 Furnace Filter Aprilaire "Space-Gard" Compatible* Merv 11 Furnace Filter (2 Pk)

Clear The Air's Aprilaire "Space-Gard" Merv 11 replacement filters effectively remove 91% of airborne particles.  Our Merv 11 filter eliminates allergens such as dust mites, pollen, mold spores, pet dander, dust, and smog.  Our advanced pleat technology provides less air flow resistance, with higher efficiency and lower pressure drop allowing air-handling systems to stay cleaner and operate more efficiently. This filter is Ideal for allergy sufferers.

Clear The Air's Aprilaire 'Space-Gard" Merv 11 filters are available in 2 sizes to replace SpaceGard models 2200 / 2250 / 2250.  Please see the technical specs of you are unsure of the size you need

Our Price: $59.99 (Free Shipping)
Honeywell Merv 11 Furnace Filter Honeywell Merv 11 Furnace Filter (2 Pack)

Clear The Air's Honeywell Merv 11 replacement filters effectively remove 91% of airborne particles.  Our Merv 11 filter eliminates allergens such as dust mites, pollen, mold spores, pet dander, dust, and smog.  Our advanced pleat technology provides less air flow resistance, with higher efficiency and lower pressure drop allowing air-handling systems to stay cleaner and operate more efficiently. This filter is Ideal for allergy sufferers.

Clear The Air's Honeywell Merv 11 filters are available in 2 sizes.  Please see the technical specs of you are unsure of the size you need

Our Price: $52.99 (Free Shipping)
Trion "Air Bear" Merv 11 Furnace Filter Trion "Air Bear" Merv 11 Furnace Filter (2 Pack)

Clear The Air's Trion "Air Bear" Merv 11 replacement filters effectively remove 91% of airborne particles.  Our Merv 11 filter eliminates allergens such as dust mites, pollen, mold spores, pet dander, dust, and smog.  Our advanced pleat technology provides less air flow resistance, with higher efficiency and lower pressure drop allowing air-handling systems to stay cleaner and operate more efficiently. This filter is Ideal for allergy sufferers.

Clear The Air's Trion "Air Bear" Merv 11 filters are available in 4 sizes.  Please see the technical specs of you are unsure of the size you need

Our Price: $54.99 (Free Shipping)
Trane Perfect Fit Merv 11 Furnace Filter Trane Perfect Fit Merv 11 Furnace Filter (2 Pack)

Clear The Air's Trane Perfect Fit Merv 11 replacement filters effectively remove 91% of airborne particles.  Our Merv 11 filter eliminates allergens such as dust mites, pollen, mold spores, pet dander, dust, and smog.  Our advanced pleat technology provides less air flow resistance, with higher efficiency and lower pressure drop allowing air-handling systems to stay cleaner and operate more efficiently. This filter is Ideal for allergy sufferers.

Clear The Air's Trane Perfect Fit Merv 11 filters are available in 7 sizes.  Please see the technical specs of you are unsure of the size you need

Our Price: $94.99 (Free Shipping)
White Rodgers Merv 11 Furnace Filter White Rodgers Merv 11 Furnace Filter (2 Pack)

Clear The Air's White Rodgers Merv 11 replacement filters effectively remove 91% of airborne particles.  Our Merv 11 filter eliminates allergens such as dust mites, pollen, mold spores, pet dander, dust, and smog.  Our advanced pleat technology provides less air flow resistance, with higher efficiency and lower pressure drop allowing air-handling systems to stay cleaner and operate more efficiently. This filter is Ideal for allergy sufferers.

Clear The Air's White Rodgers Merv 11 filters are available in 2 sizes.  Please see the technical specs of you are unsure of the size you need

Our Price: $64.99 (Free Shipping)
Performance and comparision details
Clear the air furnace filters are the highest performing air filters you can buy.  We have developed a performace chart so you can easily see how our products compare with other leading brands and what a great value they are.  This performance chart is also a great tool when deciding what performace level is right for your home. 
Click on the link or the image below to open or print the PDF for a closer look