*Total value not to exceed $400. Shipping is the responsibility of the customer. Dealers not eligible. Recipient must call Customer Service to order. Free filters must be ordered on an as-needed basis and at least 6 mos. apart. Offer good for 2 years from date of qualifying purchase. You may redeem the Free Filters referral reward one time, after which you may be eligible for a commission or to be an Affiliate. **H₂ Series Ionizers: Vesta H₂, Athena H₂, Delphi H₂. Melody II: 10% off.