Filters are not just replacement parts, they are the air that our families breathe. Our AIRX FILTERS WICKED CLEAN AIR. air filters are made in the US at our factory and headquarters in Indiana, with great attention to quality. All of our AIRX FILTERS WICKED CLEAN AIR. filters are manufactured to perform based on the industry standard for filter efficiency by particle size and performance. As a member of the National Air Filtration Association (NAFA) we are committed in manufacturing air filter products to maintain a clean and healthy indoor environment through effective air filtration. AIRX FILTERS WICKED CLEAN AIR. air filters are made in Greenwood, Indiana with great attention to quality. MERV stands for Minimum Efficiency Reporting Value and is an industry standard to rate a filters efficacy. We recognize this is not very easy to understand for consumers, so we developed our simple to use application naming system. Simply pick the filter that suits your needs. Allergies, pets, odors and smoking all can greatly affect the quality of your indoor air. Discount Filters offers many different types of air filters to help you breathe easier and choose the correct filter based on your specific needs. Ensuring that your filter fits properly in your HVAC system means making sure that you have not only the right length and width, but also the thickness of your filter. Most standard air filters are 1 - 2 inches in thickness. Whereas media filters are typically 3 to 5 inches in thickness. The best way to measure your air filter size is to get out the measuring tape and measure it directly. Also your current filter probably has the dimensions printed on the frame. Use airx odor 20x20x1 furnace filters to turn your air conditioning and heating system into a whole house air cleaner, dramatically reducing dust and pollen throughout your home. Using a mere 8 carbon havoc filter media, these 20" x 20" x 1" air filters act like a micro-particle magnet. Airx odor AC filters trap and odors, as well as dust mite debris and even large particles like dust and lint. Make your home a healthier haven and shelter your loved ones from air contaminants. Airx odor filters not only protect you from dust and pollen, they also protect your heating and air conditioning equipment from clogging with dust, affording optimal operating efficiency, better airflow and reduced energy and maintenance costs. Airx odor 20x20x1 air filters outperform fiberglass, washable, reusable one-inch filters and typical pleated filters by using more pleats per square inch and high efficiency filter media. More pleats means better airflow and reduced energy costs as well as better dust holding capabilities. Buy with confidence and expect these filters to last 90 days in most homes or for increased energy efficiency, replace filters every 2 months. Compare these filters with 3m filtrete brand filters with carbon saturated media, including odor reduction models.