Arm and Hammer, AF-AH1520, Air Filter, Pet Fresh, Filters, Replacement, Pet Fresh Collection Arm & Hammer 20 Inches x 15 Inches x 1 Inch Pet Fresh Pet Protection Air Filter The Arm & Hammer AF-AH1520 Pet Fresh pet protection air filter is the ultimate affordable combination of air quality enhancement and odor protection. This 20 Inches x 15 Inches x 1 Inch filter is constructed of pleated material with an electrostatic charge and designed for high capacity filtration. This material and design, paired with its protection against pet dander and Arm and Hammers quality odor protection makes this filter the ideal choice for a fresh and comfortable allergen free home. Electrostatic: An efficient filtration system renowned for its ability to allow air to flow unimpeded, while trapping small unwanted particles such as dust and smoke, keeping the air around you clean and safe. Features: Built-In Odor Reduction High Performance Allergen Air Filter High Capacity Filtration Enabled By Extended Surface Area Pleated Material with Electrostatic Charge Lasts Up to 90 Days Made in the United States Reduces Airborne Allergens Protects Against Pet Dander Specifications: Dimensions: 20 Inches x 15 Inches x 1 Inch Service Interval: 90 Days Filter Type: Electrostatic Today, consumers appreciate that ARM & HAMMER is an effective, yet gentle cleaner and a real alternative to using harsh chemicals, which makes it great for use around food, kids, and pets. It can also be used to replace other household and personal items that may have ingredients that are harmful to the environment.