(ii) a component of a device described in this subparagraph or a substance in any form sold for the purpose of being vaporized or aerosolized by a device described in this subparagraph, whether the component or substance is sold separately or is not sold separately

(i) any product that has been approved by the FDA for sale as a tobacco cessation product or for any other therapeutic purpose, if the product is marketed and sold solely for the approved purpose AND

(ii) tobacco products