Air Purifier / HEPA Filter Unit — HS Code
Centrifuges and filtering or purifying machinery for liquids or gases — air purifiers
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HS Code
8421 — Centrifuges, including centrifugal dryers; filtering or purifying machinery
Classification Context
Chapter
Chapter 84 — Machinery
Heading
8421 — Centrifuges, including centrifugal dryers; filtering or purifying machinery
Applicable Rule
GRI 1 — air purifiers are gas filtering appliances classified under 8421.39
Prior Rulings
EU — EBTI (Binding Tariff Information)
Search EU EBTI databaseUS — CBP CROSS Ruling Database
Search US CBP CROSS rulingsUK — HMRC Trade Tariff
View UK Trade Tariff commodityClassification Notes
Air purifiers with HEPA, activated carbon, and UV filters are classified under 8421.39 as filtering machines for gases. Standalone HEPA filter replacements are 8421.99 (parts). Air purifiers combined with humidifiers: classify by essential character (usually the purifier if that is the primary function). Ionisers without a physical filter may be classified differently — check with customs if the product relies solely on ionisation. CADR (Clean Air Delivery Rate) value does not affect classification.
MFN Duty Rates by Market
European Union
8421.39.20
EU Combined Nomenclature (CN) rate — applies to all 27 EU member states
United States
8421.39.20
US Harmonized Tariff Schedule (HTS) MFN rate — Section 301 tariffs may add to China-origin goods
United Kingdom
8421.39.20
UK Global Tariff (UKGT) — post-Brexit tariff schedule, independent of EU CN
Related searches
Official Sources & References
WCO HS Nomenclature
World Customs Organisation — the international standard behind all HS codes
wcoomd.org
EU TARIC Database
European Commission integrated tariff — EU Combined Nomenclature (CN) rates
ec.europa.eu
US HTS Schedule (USITC)
United States International Trade Commission — official US Harmonized Tariff Schedule
hts.usitc.gov
UK Global Tariff (HMRC)
His Majesty's Revenue and Customs — UK Trade Tariff post-Brexit
trade-tariff.service.gov.uk
Disclaimer: Duty rates shown are MFN (Most-Favoured-Nation) base rates sourced from live tariff database and verified April 2026. Actual duties may differ based on country of origin, applicable trade agreements (e.g. GSP, CETA, UK-EU TCA), anti-dumping measures, or changes to tariff schedules. Always verify with the official tariff database of the importing country before making customs declarations.
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