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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 don’t 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
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