CBSA 推理
&&In your application for an advance ruling, you suggested tariff classification number 4823.90.00.90. This tariff classification number is incorrect.&&&&The filter at issue is not specifically provided for in the terms of heading 48.23; in addition, it is further manufactured than just being paper filter, as described in the Explanatory Notes to the same heading.&&&&Heading 84.21 provides for, among other goods, "filtering or purifying machinery and apparatus for liquids or gases."&&&&Note (II) of the Explanatory Notes to heading 84.21 indicates that much of the filtration or purification plan of this heading is purely static equipment with no moving parts, The heading covers filters and purifiers of all types (physical or mechanical, chemical, magnetic, electro-magnetic, electrostatic, etc.) The heading covers not only large industrial plant, but also filters for internal combustion engines and small domestic appliances.&&&&Therefore, the VF500 Fine Dust Filter (part # 72952, Model VF500) meets the terms of heading 84.21 and is classified therein by application of GIR 1.