2 x Odor Control Activated Carbon Charcoal Cut-to-fit Replacement filter Pad Sheet 17.5"x 11.8" for Air Purifiers Description activated carbon is extremely porous with a very expansive surface area. As air flows through it, impurities are adsorbed on the surface of the carbon by surface electrostatic attraction and capillary action. Features: Activated carbon pad. Can be cut to fit air purifiers Help remove odors from pets, smoke, cooking, and more Dimensions of the filter: approx. 17.5"x 11.8" and 0.4" thick (inches) Package includes: 2 pcs of filter pad. Product Details: Brand: Sohler Material: Carbon Fiber Product Dimensions: 12"L x 8.8"W x 2.2"Th Compatible Devices: Air Purifier Item Weight: 8.48 Ounces Brand Name: ‎Sohler Item Weight: ‎8.5 ounces Product Dimensions: ‎12 x 8.8 x 2.2 inches Is Discontinued By Manufacturer: ‎No Part Number: ‎unknown Color: ‎black Compatible Device: ‎Air Purifier Material Type: ‎Carbon Fiber Batteries Included?: ‎No Batteries Required?: ‎No Date First Available: June 13, 2017