Lysol Triple Protection Air Conditioner/Furnace Air Filter, 22" x 22" x 1", (2-Pack) First air filter ever certified asthma & allergy friendly by the asthma and allergy foundation of America Made in the USA Infused with odorless, natural antimicrobial to protect the filter Includes activated Carbon to neutralize odors and trap unpleasant and harmful vapors like pet odors, smog, etc Unscented - does not contain scents that can trigger asthma and allergy reactions or symptoms