The Holmes LifeLong HAP1200-U HEPA Type Air Purifier Reduce airborne particles with the Holmes Air Purifier. Permanent Hepa-type filters help remove airborne particles such as smoke, dust, pollen, mold spores and pet dander. The slim tower design fits into almost any area of the room. Features three speed settings and optional ionizer. Recommended for rooms up to 170 sq ft. Features & Benefits Permanent Filtration Permanent HEPA-Type Filter never needs to be replaced. Simply vacuum every three months to maintain performance. Ideal for Medium Rooms Certified for Medium Rooms – Recommended for use in rooms up to 13 feet x 13 feet. Washable Pre-Filter Captures larger particles to extend the cleaning cycle of the HEPA-Type Filter. HEPA-Type Filter HEPA-Type filter reduces dust, pollen, pet dander, mold and smoke for cleaner, healthier indoor air. Clean, Filtered Air is distributed into the world with a fan to improve air circulation. Choose from three cleaning speeds to keep the air fresh and pure inside your home.