Monocrystalline Ingot Air Shower Purifier
A personnel and equipment air shower equipped with semiconductor-grade HEPA filtration, designed to remove particulate contamination from surfaces before clean transfer of monocrystalline ingots to slicing areas. This unit falls under tariff item 8421.39.00 as filtering and purifying machinery for gases, supporting the semiconductor wafer manufacturing process.
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 |
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 air shower includes a blower or fan as its principal component
Air handling units with integral fans may be classified as fans or blowers rather than as filtering machinery.
If the unit performs a specific function beyond filtration, such as automated cleaning
Machines with a specific function not covered elsewhere in Chapter 84 may fall under 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
• Ensure the unit is declared as filtering machinery for gases, not as a cleanroom assembly, to avoid reclassification
• Have technical documentation showing HEPA filtration specifications ready for CBSA inspection
• Verify whether the unit qualifies for duty-free treatment under a free trade agreement based on its country of origin
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
An air purification module for grinders that create orientation flats on semiconductor crystal boules. It captures grinding dust to protect wafer yield. Classified under 8421.39.00 as gas filtering machinery for semiconductor manufacturing.
CNC Grinder Particulate Air Cleaner
A high-velocity air cleaner designed for surface grinders, capturing abrasive dust and grinding wheel particles. It features self-cleaning pulse-jet filters to maintain precision tolerances in metalworking environments. Classified under tariff item 8421.39.00 as filtering machinery for gases.