Alen (TF30) HEPA-Fresh Replacement Filter for T100 and T300 Air Purifiers, 1-Pack (set of 2 filters) Provides pure, breathable air by capturing VOCs (volatile organic compounds) from cleaning products, personal care items and other household materials Creates an allergy and asthma friendly environment by removing dust, pet dander, mold spores and pollen from the air Helps maintain a clean household by reducing dust Pre-Filter layer extends the Life of the filter Eligible for Allen convenient auto ship filter plan with free Lifetime shipping Provides pure, breathable air by capturing VOCs (Volatile Organic Compounds) from cleaning products, personal care items and other household materials Creates an allergy and asthma friendly environment by removing dust, pet dander, mold spores and pollen from the air Helps maintain a clean household by reducing dust Pre-Filter layer extends the life of the filter Eligible for Alen's convenient AutoShip Filter Plan with FREE Lifetime Shipping