wooden activated carbon filter medium
CN → US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 8421390140 | 35.0% | CN | US | Official Doc |
| 8421390115 | 35.0% | CN | US | Official Doc |
Product Images
AI Analysis
🌲 Wooden Activated Carbon Filter Medium
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Level Compliance Strategy
📌 1. Product Definition and Classification: Do You Really Understand “Wooden Activated Carbon Filter Medium”?
Activated carbon filter media made from wood (such as coconut shell, wood coal, or other organic precursors) are widely used in air purification, water filtration, and gas separation systems. In international trade, these products are classified based on their function (filtration/purification) and form (loose granules, blocks, or assembled units).
Key Distinction:
- If the product is loose granular or powdered activated carbon intended for use in a filter housing → It may fall under Chapter 38 (Chemical products) or Chapter 39/84 depending on packaging and presentation.
- If the product is assembled into a filter element, cartridge, or housing unit specifically for filtering/purifying gases → It falls under Chapter 84 (Machinery for filtering or purifying gases).
⚠️ Critical Point:
- If sold as a standalone filter element designed for gas purification, it is classified under HS Code 8421.39.
- If sold as loose granules without a housing, it might be classified under 3802.10.00 (Activated carbon).
- Our DATA focuses on Chapter 84, implying the product is likely an assembled filter unit or medium integrated into a filtration system.
📦 2. HS Code Classification Details (2026 Latest Tariff Authority)
Based on the provided , the product “Wooden Activated Carbon Filter Medium” is classified under two specific HS Codes within 8421.39 (Filtering or purifying machinery and apparatus for gases). This suggests the product is either a gas separation unit or dust/air purification equipment.
| HS Code | Product Description | Application Scenario | Classification Logic |
|---|---|---|---|
8421.39.01.40 |
Gas separation equipment (Other) | Industrial gas separation, chemical processing, air compression systems | Classified as specialized machinery for separating gases (e.g., O₂/N₂ separation using carbon beds). |
8421.39.01.15 |
Dust collection and air purification equipment (Other) | HVAC systems, industrial air cleaners, fume extraction units | Classified as equipment for removing particulates or odors from air using carbon filters. |
🔍 Important Note:
- Both codes fall under 8421.39.01 (“Other filtering or purifying machinery for gases”).
- The distinction lies in the specific function:
-8421.39.01.40: For gas separation (chemical/industrial process).
-8421.39.01.15: For general air purification (dust, odors, pollutants).
- If the “wooden activated carbon filter medium” is sold as a replaceable filter cartridge for an air purifier, it may also be classified under8421.39.01.15.
💰 3. 2026 Latest Tariff Rate Breakdown (Including Additional Duties)
✅ Applicable Country: United States (US)
✅ Country of Origin: China (CN)
✅ Effective Date: Ongoing (Subject to USITC and USTR policies)
🎯 1. 8421.39.01.40 – Gas Separation Equipment
| Item | Detail |
|---|---|
| Base Tariff | 0.0% (Ad Valorem) |
| Additional Tariff (Section 301) | +25.0% |
| Total Tax Rate | 25.0% |
| Tax Calculation | CIF Value × 25% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis | USITC 8421.39.01.40 → Section 301 Footnote |
📌 Explanation:
- The 0% base tariff reflects the low duty for specialized industrial machinery.
- The +25% additional tariff is imposed under Section 301 of the Trade Act of 1974, targeting Chinese-origin goods.
- No de minimis exemption applies, meaning even small shipments are subject to the 25% duty.
🎯 2. 8421.39.01.15 – Dust Collection & Air Purification Equipment
| Item | Detail |
|---|---|
| Base Tariff | 0.0% (Ad Valorem) |
| Additional Tariff (Section 301) | +25.0% |
| Total Tax Rate | 25.0% |
| Tax Calculation | CIF Value × 25% |
| De Minimis Exemption | ❌ Not Applicable |
| Legal Basis | USITC 8421.39.01.15 → Section 301 Footnote |
📌 Explanation:
- Same tax structure as above: 0% base + 25% additional = 25% total.
- Applies to air purification equipment, including carbon filter cartridges or modules for HVAC/fume extraction.
- Critical: If the product is misclassified as a “chemical material” (e.g., 3802.10.00), the tariff may differ, but the provided DATA strictly places it under Chapter 84.
🛠️ 4. Customs Clearance Practical Advice (Avoid Pitfalls)
✅ 1. Documentation Checklist (Essential for Smooth Clearance)
| Document | Required | Description |
|---|---|---|
| ✅ Product Specification Sheet | ✔️ | Detailed description: material (wooden carbon), form (granules/cartridge), dimensions, flow rate, efficiency. |
| ✅ Technical Drawing / Assembly Diagram | ✔️ | Shows how the carbon medium is housed. Critical for proving it’s a “filtering apparatus” (Chapter 84) vs. loose chemical. |
| ✅ Product Photos (Label + Internal) | ✔️ | Clear images of the filter unit, including model number, brand, and any certification marks. |
| ✅ Commercial Invoice | ✔️ | Must explicitly state: “Gas Separation Equipment” or “Air Purification Equipment” matching HS Code. |
| ✅ Packing List | ✔️ | Detail contents: number of filter units, packaging type, gross/net weight. |
| ✅ Certificate of Origin (CO) | ✔️ | If not China-origin, may qualify for lower tariffs under FTAs. |
| ✅ Third-Party Test Report | ✔️ | Efficiency ratings (MERV, HEPA, VOC removal), pressure drop data. |
✅ 2. Classification Tips (Key Mnemonic)
🔥 “Function Determines Code: Gas Separation vs. Air Purification”
| Scenario | Correct HS Code | Incorrect Classification | Consequence |
|---|---|---|---|
| Carbon filter for industrial gas separation (e.g., N₂/O₂) | 8421.39.01.40 |
Misclassified as general air filter → Potential audit | 25% Tariff (same) |
| Carbon filter for HVAC/office air purification | 8421.39.01.15 |
Misclassified as chemical (3802.10) → Delayed clearance | 25% Tariff (same, but wrong code may trigger penalties) |
| Loose activated carbon granules (no housing) | Not in DATA (Likely 3802.10.00) | Forcibly classified under 8421 → Rejection | High risk of seizure or reclassification |
📌 Key Reminder:
- Do not describe the product as “Activated Carbon Powder” on the invoice. Use “Filter Medium for Gas Separation” or “Air Purification Filter Element”.
- If the product is a replaceable cartridge, ensure the invoice references the parent filtration system if possible, to justify Chapter 84 classification.
✅ 3. Special Cases
| Situation | Handling Advice |
|---|---|
| OEM Custom Filters | Provide client order + design specs to prove custom nature for gas separation. |
| Carbon Filters for Medical Use | If used in medical oxygen concentrators, still classified under 8421.39.01.40 (gas separation). |
| Small E-commerce Shipments | No de minimis exemption for Section 301 goods. 25% duty applies even for parcels under $800. |
| Mixed Shipments (Carbon + Housing) | Declare as a single unit under 8421.39. If separated, both parts may be taxed at 25%. |
🌍 5. Global Market Comparison (2026)
| Country/Region | Recommended HS Code | Tariff Rate | Certification | Notes |
|---|---|---|---|---|
| 🇺🇸 USA | 8421.39.01.40 / 8421.39.01.15 |
25% (Section 301) | None specific, but FCC/UL may apply for electronic filters | High duty cost. |
| 🇨🇳 China | 8421.39.01.40 / 8421.39.01.15 |
0%~5% | CCC (if electronic) | Low import duty. |
| 🇪🇺 EU | 8421.39.90 |
0% | CE | No additional tariffs. |
| 🇦🇺 Australia | 8421.39.90 |
5% | RCM | Moderate duty. |
| 🇯🇵 Japan | 8421.39.90 |
0% | PSE | No additional tariffs. |
📌 Conclusion:
- The US is the most challenging market due to the 25% Section 301 tariff.
- EU, Japan, and Australia offer more favorable tariff conditions.
- China-origin goods face a 25% penalty in the US, making cost management critical.
📌 6. Common Mistakes & Pitfalls (Lessons Learned)
❌ Mistake 1: Describing the product as “Activated Carbon Powder”
👉 Result: Customs may classify under 3802.10.00 (Chemicals), leading to wrong duty rate and potential penalties for misdeclaration.
❌ Mistake 2: Failing to provide technical drawings
👉 Result: Customs cannot verify if it’s a “filtering apparatus” (Chapter 84) or “chemical material” (Chapter 38). Delay in clearance.
❌ Mistake 3: Assuming de minimis exemption applies
👉 Result: 25% duty still applies to shipments under $800. Unexpected costs.
✅ Correct Approach:
“Wooden Activated Carbon Filter Element for Air Purification System, Model XYZ, Certified for VOC Removal, Included in Packaging with Housing”
🎯 7. Conclusion: Precision in Classification Saves Money!
🎯 Remember:
🔹 “Function First: Gas Separation (40) vs. Air Purification (15)”
🔹 “25% Duty for China-Origin in US: Plan Ahead”
🔹 “Describe as ‘Filtering Apparatus’, Not ‘Carbon Powder’”
📌 Pro Tip:
If your Wooden Activated Carbon Filter Medium is not from China, you may avoid the 25% Section 301 tariff. Consider third-party processing in Vietnam, Mexico, or India to qualify for lower duties.
📣 Immediate Action:
📞 Consult a licensed customs broker + Provide technical specs + Apply for Advance Ruling if possible.
🚀 Ensure your products clear customs smoothly, avoid penalties, and maximize profit margins!
✨ Professional Classification, Starting with Accuracy!
💼 Every penny saved in duty is pure profit!
Customer Reviews
About HS Code Classification
The Harmonized System (HS) is an internationally standardized nomenclature developed by the World Customs Organization (WCO) to classify traded products. Over 200 countries use the HS system as the basis for customs tariffs, trade statistics, and import/export regulations.
Each HS code follows a hierarchical structure:
- Chapter (2 digits) — Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) — More specific grouping within the chapter
- Subheading (6 digits) — Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) — Country-specific extensions for further classification, such as US HTSUS 10-digit codes
Correct HS code classification is essential for smooth customs clearance, accurate duty payment, and compliance with trade regulations. Misclassification can lead to customs delays, overpayment of duties, or penalties.
When importing from CN to US, the applicable tariff rates may include:
- Most-Favored-Nation (MFN) rate — The standard duty rate applied to WTO members
- General rate — Applied to countries without trade agreements
- Trade remedy duties — Additional tariffs such as Section 301 (anti-dumping), Section 232 (national security), or countervailing duties
The information provided on this page is for reference purposes only. For official classification, please consult with your local customs authority or a licensed customs broker.