Genuine Electrolux EL050 High Deodorization Anti-Odor Carbon Air Cleaner Filters for ELAP40D8PW and ELAP45D8PW, 1 Carbon filter Contains 1 High Deodorization Anti-Odor Carbon Filter Fits Electrolux Pure Oxygen Allergy 400 and 450 Air Cleaner, ELAP40D8PW and ELAP45DPW Replaces EL050 Filter Replace High Deodorization Anti-Odor Carbon filter every 12 months for optimum performance