Furnace and Air Conditioner Filter

Exceptional product offerings. Look for furnace filters that have a MERV rating. This stands for "minimum efficiency reporting value" (MERV) to describe filter performance. This is the rating of a new filter. The filter actually improves its' filtering capacity over time up to a point. Then when the filter gets clogged, filtering performance degrades and the filter should be replaced.

Your size not on the list? Email our expert. We can special order your size! Don't make the mistake and change your furnace filter only at the beginning of winter. When you run your central air conditioning, you are filtering your air. Check and change your air conditioning filter frequently. A clogged filter will strain the blower motor and compressor which may result in premature equipment failure.

FiltersAmerica.com features these popular brands of furnace air filters:

• Accumulair Emerald Furnace Filters - MERV 6



• Accumulair Gold Furnace Filters - MERV 8



• Accumulair Platinum Furnace Filters - MERV 11



• Accumulair Diamond Furnace Filters - MERV 13 Best Filter for Allergy



• NEW! BestAir odor and allergy filters



• Purolator polyfiber Disposable Furnace Filter by Indigo



• Purolator Fiberglass Disposable Furnace Filter by Indigo



• Purolator Pleated Disposable Furnace Filters by Indigo



• GlassFloss Pleated Furnace Filters



• Washable Furnace Filter



• Multi-ply Furnace Filter



• Cut to fit Furnace Filter

Change your furnace filter

Learn how to change your furnace filter.

How ofter should I change my furnace filters? Recommendations vary based on a number of factors: the type of filter that you use, how many pets you have, whether anyone in your home has allergies, etc. If you use disposable fiberglass panel filters, you should change them anywhere from once a month to once every three months. Pleated furnace filters generally last from 3 months with some up to a year.

Air filter MERV rating

The MERV System (Minimum Efficiency Reporting Value) was instituted to provide minimum efficiency values. When you first install your new furance or air conditioning filter, its efficiency is at its lowest point. That's because it hasn't built up enough dust and particles on the filter to help trap more dust and particles.

The MERV Rating will give you a worst-case scenario for the lowest amount of efficiency you can expect from your air filter. This MERV System also measures the size of the particles a filter can trap. The scale that the MERV System uses can range from a MERV 1 to a MERV 16 (95%+ ASHRAE filter). The MERV System is an excellent tool when you know which contaminants you want to have filtered.