Welcome to Allergy Filter Depot. We offer high quality air filters with some of the best Merv ratings available on the market. Use the filter finder above to search our extensive list of standard filter sizes that we have available.  Most replacement furnace filters come in a choice of merv ratings, we only offer merv 13 and Merv 11 furnace filters due to their superior filtration.

Allergy Filter Depot offers a wide choice of sizes of Accumulair air conditioning filters and heater filters and Filtrete air filters.  Using the filter finder above choose your home air filter size to search all of our air filters such as the popular Accumulair heater filter line and 3M furnace filter line.  From your search results choose which filter you want add it to your cart and checkout.  The 3m Filtrete filter ( Merv 11 Ultra Allergen ) is 1 Inch thick and comes in 29 standard sizes and the Accumulair Electrostatic air filter ( Merv 13 Diamond and Merv 11 Platinum ) comes in a thickness of 1,2,4,and 6 inches and comes in 150 standard sizes.  With over 150 standard sizes you should be able to find just the right furnace filter size for your HAVC or air conditioning system.  Please be careful to select the proper replacement furnace filter size filter when ordering.  Home air filters sometimes come in both an actual size and some are slightly smaller then the stated size. If in doubt it is sometimes best to measure your current furnace filter to check its size.  About furnace air filter Merv ratings.  We strive to carry high quality filters with superior filtration.  Merv measures how small of a particle can be filtered out of the air, the higher the merv number the better the filtration. 3M Furnace filters are also measured in MPR.

Accumulair air filters and Filtrete air filters come in a wide variety of sizes and Merv ratings and offer some of the best filtration offered in an electrostatic furnace filter.  We have chosen the Filtrete air filter and Accumulair air conditioning filter because of their ridged construction and wide size availability.  The Accumulair replacement filter and the 3M Filtrete air filter are usually changed about every 3 months depending on your current homes environment.  Pets or excessive dust may reduce the time and your furnace filters may have to be changed on a more frequent basis.  Please enjoy our store.