From Chapter 84: Chapter 84
| HTS Code | Description | General Duty |
|---|---|---|
| 8421110000 | Centrifuges, including centrifugal dryers Cream separators | Free |
| 8421120000 | Centrifuges, including centrifugal dryers Clothes-dryers | Free |
| 8421190000 | Centrifuges, including centrifugal dryers Other | 1.3% |
| 8421210000 | Filtering or purifying machinery and apparatus for liquids For filtering or purifying water | Free |
| 8421220000 | Filtering or purifying machinery and apparatus for liquids For filtering or purifying beverages other than water | Free |
| 8421230000 | Filtering or purifying machinery and apparatus for liquids Oil or fuel filters for internal combustion engines | 2.5% |
| 8421290000 | Filtering or purifying machinery and apparatus for liquids Other | Free |
| 8421290005 | Other Refrigerant recovery and recycling units | Free |
| 8421290015 | Other Oil-separation equipment | Free |
| 8421290040 | Other Hydraulic fluid power filters, rated at 1,000 kPa or greater | Free |
| 8421290065 | Other Other | Free |
| 8421310000 | Filtering or purifying machinery and apparatus for gases Intake air filters for internal combustion engines | 2.5% |
| 8421320000 | Filtering or purifying machinery and apparatus for gases Catalytic converters or particulate filters, whether or not combined, for purifying or filtering exhaust gases from internal combustion engines | Free |
| 8421390100 | Filtering or purifying machinery and apparatus for gases Other | Free |
| 8421390105 | Dust collection and air purification equipment For machine tools of headings 8456 through 8465, inclusive | Free |
| 8421390115 | Dust collection and air purification equipment Other | Free |
| 8421390120 | Industrial gas cleaning equipment Electrostatic precipitators | Free |
| 8421390130 | Industrial gas cleaning equipment Other | Free |
| 8421390140 | Other Gas separation equipment | Free |
| 8421390160 | Other Pneumatic fluid power filters, rated at 550 kPa or greater | Free |
| 8421390190 | Other Other | Free |
| 8421912000 | Of centrifuges, including centrifugal dryers Drying chambers for the clothes-dryers of subheading 8421.12 and other parts of clothes-dryers incorporating drying chambers | Free |
| 8421914000 | Of centrifuges, including centrifugal dryers Furniture designed to receive the clothes-dryers of subheading 8421.12 | Free |
| 8421916000 | Of centrifuges, including centrifugal dryers Other | Free |
| 8421990100 | Parts Other | Free |
| 8421990140 | Other Parts of machinery and apparatus for filtering or purifying water | Free |
| 8421990180 | Other | Free |