Actual Size of Filter: 17-1/2 x 24-1/2 x 1-3/4 * Outperforms comparable fiberglass, washable, and poly disposable filters * Electrostatic air filter captures dust, pollen, dust-mite debris, mold spores, pet dander, and smog * Hypoallergenic and antimicrobial pleated electrostatic filter material * Made in the USA