21-1/2 x 23-5/16 x 1 Air Filter for A/C or Furnace.
Filter Rating: MERV 11 | FPR 7 | MPR 1000.
Installing our 21-1/2 x 23-5/16 x 1 MERV 11 Electrostatically charged filter will provide superior air filtration for your home or business. This air filter is especially effective in removing airborne particles that cause allergies and sinus irritation. Aside from the health benefits, this HVAC air filter also protects your heating and cooling system by making it work more efficiently and can reduce expensive repair bills. Our MERV 11 air filters are made in the USA, and it’s recommended to replace them every 90 days for optimal performance.
MERV 11 Specifications:
• Effectively reduces pollen, dust, pet dander, mold spores, dust mites, bacteria, smoke, smog and other allergens from the air in your home or business.
• Super charged, electrostatically enhanced media.
• Specifically manufactured for system applications requiring improved medium efficiency, non-shedding filtration media.
• MERV 11 (Minimum Efficiency Reporting Value) based on ASHRAE Test Standard 52.2-2012
• Synthetic media made up of continuous hydrophobic fibers which do not absorb moisture and can withstand turbulent, high velocity conditions.
• Manufactured for system applications requiring high efficiency, non-shedding filtration media.
• Effective in single filter applications or as improved pre-filter substitutes for disposables, permanent metal filters or media pad/frame filters.
• Improved overall particle size efficiency due to continuous fiber structure and dual-stage electrostatic enhancement which captures an increased amount of smaller particulate than conventional glass media.
• Pleat configuration: Formed into aerodynamic, semi-tapered, wedge-shaped pleats expanding its capability to capture contaminants.
• Recommended to replace at least every 90 days
• Made in the USA
We have a 100% customer satisfaction policy. If you are not satisfied with your purchase for any reason, just notify us through your account returns area, or email support. We will send you a Free shipping return label and provide your choice of a refund or product replacement. You have 180 days to return an item. Our goal is to always make your life a little easier.