16 x 20 x 1. Actual size 15.75 in x 19.725 in x .75 in (40.005 cm x 50.165 cm x 1.905 cm). Up to 3 months of filtration performance. The standard of purity. Unscented odor fighting power. Advanced odor control. 87% effective at reducing large airborne particles. Electrostatically charged. Attracts microscopic dust and allergens. Reduces: pollen; pet dander; dust mites debris; dust; household lint; mold spores; microscopic allergens; odors; smoke; VOC's. Plus odor reduction. Use Arm & Hammer air filters to help clean the air in your home on two different levels by reducing both airborne allergens and odors. The Arm & Hammer Maximum 16000 Air Filter has been shown to be highly effective in laboratory tests at reducing both airborne contaminants and odors. 87% reduction of large airborne particles. 45% reduction of common airborne household odors. Compare to 15% odor reduction for basic pleated filters. Outperforms basic pleated non-electrostatic filters (Basic pleated non-electrostatic filter is a 3 month filter with MERV rating less than MERV 8). Maximum Allergen Reduction: Highly effective at reducing large airborne allergens like pollen, mold, spores & ragweed. Engineered to reduce microscopic particles in the air like dust, smoke & pet dander. Maximum Odor Reduction: Odors come in different types. That's why Arm & Hammer Maximum 16000 attacks household odors with powerful ingredients on different levels. www.protectplusair.com. Free filter reminder service. Scan to sign up now. To learn more about this product visit us at: www.ProtectPlusAir.com. Limited Warranty: This product will be free from defects in material and manufacture for a period of 6 months from date of purchase. If this product is defective your remedy shall be replacement of the product or refund off the purchase price at Protect Plus Industries option. For warranty service, contact Protect Plus Industries. Limitation of Liability: Protect Plus Industries will not be liable for any loss or damage arising from the use of this product whether direct, indirect, special, incidental or consequential. In case of emergency, damage, or need of repair, please contact us at 828-324-6454 or you can contact us on the web at www.protectplusair.com. Made in USA.