HTS code 9902.16.81 covers "Electrothermic plug-mounted room deodorizers of a kind used for domestic purposes, each with decorative non-plastic housing, not incorporating a rheostat; such appliances intended for use with fragrant wax, whether or not presented with wax (provided for in subheading 8516.79.00)" under the US Harmonized Tariff Schedule. This is the official duty rate charged by US Customs when this product is imported into the United States, sourced directly from the U.S. International Trade Commission and refreshed daily.