Semiconductor Slurry Mist Eliminator
A coalescing filter system that eliminates aerosolized chemical slurries from wafer grinding and lapping exhaust, preventing fab contamination. This product falls under tariff item 8421.39.00 as gas purification machinery for semiconductor wafer preparation equipment.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
PGA flags (8)Show detailsHide detailsTCVehicles Program - Age ExemptionMay be requiredTCVehicles Program - CMVSS Appendix GMay be requiredTCVehicles Program - CMVSS Case-by-CaseMay be requiredTCVehicles Program - CMVSS Returning VehiclesMay be requiredTCVehicles Program - FMVSS Case-by-CaseMay be requiredTCVehicles Program - FMVSS StandardMay be requiredTCVehicles Program - Unregulated VehiclesMay be requiredTCVehicles Program - Vehicles for PartsMay be required
- TC
Vehicles Program - Age Exemption · May be required · on some HTS numbers under this code
May require TC Vehicles Program - Age Exemption depending on the full 10-digit classification number (only some numbers under this code are listed). Matching criteria: Equal To 8421390090; Equal To 8421390040. Logic: MATCH IF (Valid HS Code) OR Commodity Identity Code = VV.
- TC
Vehicles Program - CMVSS Appendix G · May be required · on some HTS numbers under this code
May require TC Vehicles Program - CMVSS Appendix G depending on the full 10-digit classification number (only some numbers under this code are listed). Matching criteria: Equal To 8421390040; Equal To 8421390090. Logic: MATCH IF (Valid HS Code) OR Commodity Identity Code = VV.
- TC
Vehicles Program - CMVSS Case-by-Case · May be required · on some HTS numbers under this code
May require TC Vehicles Program - CMVSS Case-by-Case depending on the full 10-digit classification number (only some numbers under this code are listed). Matching criteria: Equal To 8421390040; Equal To 8421390090. Logic: MATCH IF (Valid HS Code) OR Commodity Identity Code = VV.
- TC
Vehicles Program - CMVSS Returning Vehicles · May be required · on some HTS numbers under this code
May require TC Vehicles Program - CMVSS Returning Vehicles depending on the full 10-digit classification number (only some numbers under this code are listed). Matching criteria: Equal To 8421390040; Equal To 8421390090. Logic: MATCH IF (Valid HS Code) OR Commodity Identity Code = VV.
- TC
Vehicles Program - FMVSS Case-by-Case · May be required · on some HTS numbers under this code
May require TC Vehicles Program - FMVSS Case-by-Case depending on the full 10-digit classification number (only some numbers under this code are listed). Matching criteria: Equal To 8421390040; Equal To 8421390090. Logic: MATCH IF (Valid HS Code) OR Commodity Identity Code = VV.
- TC
Vehicles Program - FMVSS Standard · May be required · on some HTS numbers under this code
May require TC Vehicles Program - FMVSS Standard depending on the full 10-digit classification number (only some numbers under this code are listed). Matching criteria: Equal To 8421390040; Equal To 8421390090. Logic: MATCH IF (Valid HS Code) OR Commodity Identity Code = VV.
- TC
Vehicles Program - Unregulated Vehicles · May be required · on some HTS numbers under this code
May require TC Vehicles Program - Unregulated Vehicles depending on the full 10-digit classification number (only some numbers under this code are listed). Matching criteria: Equal To 8421390040; Equal To 8421390090. Logic: MATCH IF (Valid HS Code) OR Commodity Identity Code = VV.
- TC
Vehicles Program - Vehicles for Parts · May be required · on some HTS numbers under this code
May require TC Vehicles Program - Vehicles for Parts depending on the full 10-digit classification number (only some numbers under this code are listed). Matching criteria: Equal To 8421390040; Equal To 8421390090. Logic: MATCH IF (Valid HS Code) OR Commodity Identity Code = VV.
CBSA Single Window matching criteria, unknown
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the system primarily filters liquid slurries rather than airborne mists
Liquid filtering machinery is classified separately from gas filtering machinery within heading 84.21.
If the eliminator performs a unique function not typical of standard gas filters
Machines with a specific function not described elsewhere may be classified in this residual heading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document the coalescing filtration mechanism to demonstrate it is gas purification, not liquid separation
• Ensure the exhaust connection specifications are clear for CBSA classification
• Check if the mist eliminator is a complete machine or a part, as this changes the applicable tariff item
Related Products under Tariff item 8421.39.00
300mm Silicon Wafer Prep Dust Extraction Hood
A localized dust collection hood for 300mm wafer preparation lines, filtering process-generated airborne particles. It is used in slicing, grinding, and polishing stations. Classified under 8421.39.00 as gas filtering machinery, with specific relevance to semiconductor manufacturing.
3D Printer Resin Vapor Extractor
An enclosed carbon bed extractor designed to capture toxic resin vapors emitted by SLA/DLP 3D printers during prototyping. It uses activated carbon filtration to adsorb volatile organic compounds (VOCs) and odors, making it suitable for hobbyist and maker spaces. This product falls under tariff item 8421.39.00 as other filtering or purifying machinery for gases.
Activated Carbon Gas Adsorber
A canister filled with activated carbon media designed to adsorb volatile organic compounds (VOCs) and odors from air streams in ventilation systems. It functions as a gas purifying apparatus by trapping contaminants through adsorption. This product is correctly classified under tariff item 8421.39.00 as other filtering or purifying machinery for gases.
Allergen-Reducing Bedroom Air Cleaner
A quiet, low-energy air cleaner with multi-stage filtration including a pre-filter, HEPA filter, and activated carbon, designed for bedrooms to trap pet dander and mold spores. It purifies indoor air by filtering particulates and adsorbing odors. This product falls under tariff item 8421.39.00 as other filtering or purifying machinery for gases.
Boule Flatting Grinder Filtration System
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CNC Grinder Particulate Air Cleaner
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