An air purifier shipment may be delayed not because the product is inherently complex, but because the commercial description is too generic, the HS code is misapplied, the Wi-Fi/Bluetooth module is overlooked, the model is inconsistent across documents, or product labeling is not locked before ETA. This guide provides an E2E (End-to-End) compliance map for HS code, duties, sectoral policy, customs documents, clearance workflow and pre-ETA risk controls.

QUICK FACTS

Item	Operational review point
Applicable product	Electric standalone air purifiers for household/office use, whose principal function is air filtration/purification.
Not automatically applicable to	Dehumidifiers, air conditioners, evaporative coolers, fan heaters, cleanroom AHU/FFU, medical/sterilization devices with treatment claims.
Reference HS code	8421.39.20 – Air purifiers.
Reference MFN import duty	0%, subject to tariff verification on the customs declaration date.
Reference ordinary import duty	5%, generally relevant where preferential/special preferential treatment is not available.
VAT	Base VAT 10%; 8% may apply during the VAT reduction period if eligibility conditions are satisfied and no exclusion applies.
Main risks	Wrong HS due to confusion with fans/dehumidifiers/industrial air-treatment equipment; model/label inconsistency; missing Wi-Fi/Bluetooth module files; refurbished goods declared as new.
Energy labeling	Under Circular 52/2025/TT-BCT, standalone air purifiers are not listed in Article 2 as mandatory energy-labeling appliances. Re-check if the product is a combined appliance or declared under another main function.

Legal note: HS code, tariff rates and sectoral policy in this article are for operational reference only. The importer must verify the tariff schedule, valid regulations and actual product file at the customs declaration date.

SCOPE OF APPLICATION

This article applies to standalone electric air purifiers used in homes, offices, hotels, shops or normal commercial premises, with air filtration/purification as the principal function.

It does not automatically apply to dehumidifiers, evaporative coolers, air conditioners, fan heaters, vacuum cleaners, cleanroom AHU/FFU or industrial air-treatment systems.
It does not automatically apply to medical devices, medical sterilizers, industrial ozone generators or products carrying treatment claims.
New, used, refurbished, sample, warranty-returned and project goods may trigger different policy reviews.
If the model contains Wi-Fi/Bluetooth/RF modules, control software, encryption, batteries, adapters, chargers or accessories, each element should be reviewed separately against the catalogue, datasheet, model and actual import purpose.

PRODUCT CLASSIFICATION & TECHNICAL IDENTIFICATION

The key identification point is the principal function: whether the product filters/purifies air, or merely ventilates, dehumidifies, cools, heats or treats air as part of another system. The technical file should clearly show model, voltage, power, filtration technology, accessories and condition of goods.

Technical criterion	Documents to check	Risk if described incorrectly	Suggested description
Principal function	Catalogue, datasheet, user manual	Confusion with fans, dehumidifiers, air conditioners or industrial equipment	Air purifier for indoor use, model…, power…, voltage…, new 100%.
Filtration mechanism	HEPA, activated carbon, pre-filter, ionizer, UV-C, plasma description	Wrong policy if special functions/claims exist	Air purifier with HEPA/activated carbon filter; do not overstate claims.
Model/series/serial	Invoice, packing list, original label, model list	Customs questions due to model mismatch	State full model, series and quantity consistently.
Wireless connectivity	Module datasheet, manual/app information	ICT/RF policy may be missed	If Wi-Fi/Bluetooth exists, review the policy before import.
Accessories	Packing detail, images, accessory list	Accessories may have separate HS/policy or transport impact	Declare remote/adapter/filter accurately.
Goods condition	Contract, invoice, product photos, manufacturer confirmation	Used/refurbished goods misdeclared as new	State New 100% or declare used/refurbished correctly.

HS CODE – DUTIES – C/O

The reference HS code is 8421.39.20 for air purifiers. Classification should be based on the principal function, construction and operating principle. Filter cartridges, spare parts or industrial air-treatment equipment may fall under different codes.

Reference MFN import duty: 0%.
Reference ordinary import duty: 5%.
VAT: base 10%; 8% may apply during the VAT reduction period if eligible.
Special preferential FTA duty applies only with a valid C/O, correct form, origin criterion, goods description and transport documentation.

Reference HS code	Condition of application	Risk of misclassification	Documents to verify
8421.39.20	Air purifier whose principal function is gas/air filtration or purification	Confusion with fans, dehumidifiers, air conditioners, coolers or industrial air-treatment equipment	Catalogue, datasheet, label photos, operating principle, model list
8421.39.90	Other gas filtering/purifying equipment when the product is not an air purifier by design/function	Wrong duty/statistics and possible post-clearance exposure	Technical file, drawings, function description
8421.99.xx	Parts/filter cartridges imported separately, not a complete machine	Misdeclaration between complete unit and part	Packing list, spare part catalogue, BOM if any

APPLICABLE SECTORAL POLICY MATRIX

Cargo situation	Potential policy	Documents to check	Authority/portal if identifiable	Recommended timing	Risk note
Standard new air purifier without Wi-Fi/Bluetooth/RF	Normal customs procedure; product label and HS code review	Invoice, PL, B/L/AWB, catalogue, datasheet, label/model photos	Local customs branch	5-7 days before ETA	Do not conclude “no license required” before reviewing the actual model and technical file.
Model with Wi-Fi/Bluetooth/RF/app control	Possible ICT/RF conformity and quality management review if listed	Module datasheet, frequency, RF output, QCVN, manual	MIC/VNTA or public service portal if applicable	Before purchase or before ETD	Do not rely on the name “air purifier” only.
UV-C/ionizer/plasma/ozone or sterilization claims	Technical/safety explanation may be requested; medical claims require separate review	Catalogue, test report, manual, marketing claims, original label	Customs/sectoral authority depending on function	Before finalizing documents	Avoid “medical sterilizer” if the product is a consumer air purifier.
Battery/adapter/remote/accessories	Accessory, transport safety and description review	Packing detail, MSDS/UN38.3 if lithium battery exists	Carrier, forwarder, customs	Before booking	Accessories may affect both customs and logistics policy.
Used/refurbished goods	Used machinery/equipment policy may apply	Condition file, manufacturing year, inspection certificate	Customs/appointed inspection body if applicable	Before purchase	Do not declare refurbished goods as new.
Samples, warranty goods, project cargo, EPE/FDI/factory imports	Customs purpose, customs regime, non-commercial/commercial treatment, tax/exemption policy if any	PO/contract, non-commercial invoice if applicable, project documents, factory/EPE status	Customs authority and relevant licensing authority if applicable	Before shipment confirmation	Do not assume the same treatment as ordinary trading goods; review customs purpose and importer status.

LEGAL DOCUMENTS TO REVIEW

Document group	Document name/number	Issuing authority	Effective time if identifiable	Role in procedure	Key article/appendix to check	Review note
Law	Law Hải quan số 54/2014/QH13	National Assembly	Effective from 01/01/2015	Nền tảng thủ tục hải quan, kiểm tra, giám sát hải quan	Review quy định về hồ sơ, khai báo, kiểm tra thực tế hàng hóa	Đối chiếu văn bản hợp nhất/nội dung sửa đổi tại thời điểm làm thủ tục.
Law	Law Quản lý ngoại thương số 05/2017/QH14	National Assembly	Effective from 01/01/2018	Basis xác định hàng cấm, hạn chế, quản lý theo giấy phép	Review danh mục cấm/hạn chế theo Decree 69/2018/NĐ-CP	Máy lọc không khí tiêu chuẩn cần đối chiếu theo model và mục đích nhập khẩu thực tế.
Decree	Decree 69/2018/NĐ-CP	Government	Issued 15/05/2018	Quy định chi tiết một số điều của Law Quản lý ngoại thương	Phụ lục hàng cấm, tạm ngừng, quản lý theo giấy phép	Do not suy diễn chỉ theo tên gọi hàng hóa.
Decree	Decree 59/2018/NĐ-CP sửa đổi Decree 08/2015/NĐ-CP	Government	Effective from 05/06/2018	Khung chi tiết về thủ tục, kiểm tra, giám sát hải quan	Các nội dung liên quan khai báo, kiểm tra hồ sơ/hàng hóa	Applicable cùng các văn bản hướng dẫn hiện hành.
Circular	Circular 38/2015/TT-BTC, sửa đổi bởi Circular 39/2018/TT-BTC	Ministry of Finance	TT 39/2018 có hiệu lực từ 05/06/2018	Hướng dẫn hồ sơ hải quan, kiểm tra, quản lý thuế đối với hàng XNK	Hồ sơ hải quan; khai báo; nộp/chứng từ điện tử	Cần đối chiếu các lần sửa đổi/bổ sung mới nếu có.
Tariff	Decree 26/2023/NĐ-CP; Decree 108/2025/NĐ-CP	Government	NĐ 26 hiệu lực 15/07/2023; NĐ 108 hiệu lực 19/05/2025	Basis tra cứu biểu thuế NK ưu đãi và danh mục hàng hóa	Phụ lục biểu thuế theo mã HS 8421.39.20	Thuế suất phải tra cứu theo ngày đăng ký tờ khai.
Decision	Decision 15/2023/QĐ-TTg	Thủ tướng Government	Effective from 15/07/2023	Basis thuế suất nhập khẩu thông thường	Tariff suất thông thường; nguyên tắc 150% nếu không có trong danh mục	Applicable khi không đủ điều kiện thuế ưu đãi/ưu đãi đặc biệt.
VAT	Nghị quyết 204/2025/QH15; Decree 174/2025/NĐ-CP	National Assembly; Government	Effective from 01/07/2025	Chính sách giảm thuế GTGT trong giai đoạn 01/07/2025-31/12/2026	Điều kiện hàng hóa được giảm thuế GTGT	VAT cần đối chiếu theo danh mục loại trừ và thời điểm nhập khẩu.
Product labeling	Decree 43/2017/NĐ-CP; Decree 111/2021/NĐ-CP	Government	NĐ 43 hiệu lực 01/06/2017; NĐ 111 hiệu lực 15/02/2022	Basis ghi nhãn hàng hóa, nhãn phụ tiếng Việt khi lưu thông	Nội dung bắt buộc trên nhãn; trách nhiệm tổ chức/cá nhân	Đối chiếu nhãn gốc, nhãn phụ, model, xuất xứ, thông số kỹ thuật.
Used/refurbished machinery	Decision 18/2019/QĐ-TTg; Decision 28/2022/QĐ-TTg	Thủ tướng Government	QĐ 18 hiệu lực 15/06/2019; QĐ 28 hiệu lực 01/03/2023	Quy định nhập khẩu máy móc, thiết bị, dây chuyền công nghệ đã qua sử dụng	Điều kiện tuổi thiết bị, tiêu chuẩn, hồ sơ giám định nếu thuộc phạm vi	Applicable khi hàng không phải mới 100% hoặc có dấu hiệu đã qua sử dụng.
ICT/RF	Circular 29/2025/TT-BKHCN	Ministry of Information and Communications	Effective from 15/05/2024	Danh mục hàng hóa có khả năng gây mất an toàn thuộc trách nhiệm quản lý BTTTT	Review nếu máy tích hợp Wi-Fi/Bluetooth/RF/thiết bị vô tuyến	Do not áp dụng máy móc; chỉ xác định sau khi kiểm tra module, tần số, QCVN và HS liên quan.
Energy labeling	Circular 52/2025/TT-BCT	Ministry of Industry and Trade	Effective from 1 January 2026	List and roadmap for mandatory energy labeling	Articles 2 and 3	Standalone air purifiers are not listed in Article 2; re-check if the product is a combined appliance such as fan/air-conditioner/microwave etc.

VIEW / DOWNLOAD ORIGINAL LEGAL DOCUMENTS

Businesses should cross-check the official text on the Government legal document portal or the issuing authority website before application.

Vietnam Trade Portal – Tariff lookup Customs Law 54/2014/QH13 Decree 26/2023/ND-CP Product labeling rules Circular 29/2025/TT-BKHCN Circular 52/2025/TT-BCT Decree 108/2025/ND-CP

CUSTOMS CLEARANCE DOCUMENT SET

Commercial document set

Commercial Invoice.
Packing List.
Bill of Lading/Air Waybill.
Sales Contract/Purchase Order if any.
C/O if preferential duty is claimed.
Catalogue/Datasheet/User manual, product photos, original label, model list.

Sectoral files if triggered

Conformity/quality inspection files if the model is listed.
Test reports and technical documents for Wi-Fi/Bluetooth/RF/UV-C/ionizer/plasma.
Product labeling and Vietnamese supplementary label file.
MSDS/UN38.3 if lithium batteries are included.
Used/refurbished machinery file if applicable.

File group	Required document	Used for which step	Usually prepared by	Common error	Pre-ETA check
Commercial documents	Commercial Invoice	Value declaration, seller/buyer, Incoterms	Exporter/Importer	Wrong description, value, Incoterms	Match product name, model, quantity and price with PO/contract.
Commercial documents	Packing List	Packages, GW/NW, CBM, packing method	Exporter/Shipper	Accessories/filters/adapters not separated	Compare with invoice and packing photos.
Transport	B/L or AWB	Manifest, D/O, cargo release	Forwarder/Carrier	Wrong consignee, packages, description	Compare with invoice, PL and booking.
Origin	C/O if preferential duty is claimed	FTA duty treatment	Exporter/Issuing authority	Wrong form, HS, description, origin criterion	Review draft C/O before ETA.
Technical file	Catalogue/Datasheet/User manual	HS/policy/function/model review	Manufacturer/Importer	Wireless module missing	Request model-specific technical sheet.
Labeling	Original label and Vietnamese supplementary label draft	Market circulation and customs explanation	Importer/Compliance	Label inconsistent with documents	Check model, origin, manufacturer and specifications.
Specialized file if any	Conformity declaration/certification, test report, quality inspection registration, battery/UV/RF documents	Specialized review before or during customs declaration	Importer/compliance team/testing body	Preparing after arrival, causing storage/demurrage risk	Identify trigger points from datasheet and model before ETA.

Document consistency rule: Goods name, quantity, model, serial number, origin and technical specifications must be fully consistent across commercial documents, catalogue, labels, sectoral files and the customs declaration.

CLEARANCE DECISION POINTS THAT MAY HOLD THE SHIPMENT

Decision point	Question to answer	Evidence	Consequence if unclear	Recommended handling
HS basis is sufficient?	Is the principal function air purification or multi-function?	Catalogue, datasheet, structure photos, manual	HS consultation/reclassification	Lock HS based on function before ETA.
Model consistency?	Do invoice, PL, B/L/AWB, C/O and labels show the same model?	Commercial documents, label photos, model list	Document correction/explanation	Use one controlled model list.
Wireless connectivity?	Wi-Fi/Bluetooth/RF/app control?	Module datasheet/manual	Late sectoral file request	Review ICT/RF before purchase.
Medical/sterilization claim?	Any medical/sterilizer/virus removal claim?	Catalogue, manual, website, label	Possible different policy group	Align description to actual function.
C/O eligibility?	Correct form, criterion, description and HS?	C/O, invoice, PL, through B/L	Loss of preferential duty	Check draft C/O before ETA.
New or used/refurbished?	Is the goods condition clearly stated as new 100%, used or refurbished?	Invoice, manufacturer confirmation, photos, serial/model list	Possible used-equipment policy review or refusal of ordinary clearance treatment	Lock the goods condition in PO/invoice and obtain supporting evidence before shipment.
Energy labeling trigger?	Is it a standalone air purifier or a combined appliance listed for energy labeling?	Catalogue, product function, Circular 52/2025/TT-BCT	Wrong declaration may create unnecessary or missed energy-labeling compliance	Check Articles 2 and 3 of Circular 52/2025/TT-BCT before finalizing description and HS.

PRACTICAL E2E WORKFLOW

Step 1: Pre-ETA review

Confirm HS code, duties, C/O, labeling, sectoral policy, wireless modules, goods condition and accessories.

Step 2: Lock documents and technical file

Finalize invoice, PL, B/L/AWB, catalogue/datasheet and model/serial list.

Step 3: Register sectoral files if applicable

Prepare ICT/RF, battery, UV-C or refurbished-goods files before ETA where relevant.

Step 4: Lodge customs declaration

Green channel: conditional release by system. Yellow: document check. Red: document and physical inspection.

Step 5: Clearance and post-clearance controls

Release cargo, apply supplementary labels if needed, store shipment files and prepare post-clearance explanation records.

PRE-ETA RISK CHECKLIST

Risk	Consequence	Pre-ETA control	Documents to check
Incorrect C/O form or origin criterion	Preferential duty rejected	Review draft C/O before ETA	C/O, invoice, PL, B/L
Model mismatch	Document hold or correction request	Use one controlled model list	Invoice, PL, catalogue, label
Wireless module missed	Late conformity/quality request	Review module datasheet before purchase	Datasheet, manual
Generic goods description	Wrong HS/policy	Describe principal function, model and filtration technology	Catalogue, invoice
Used/refurbished condition not reviewed	Used-goods policy exposure	Lock “new 100%” or declare actual condition	PO, invoice, photos
Supplementary label not prepared	Market circulation risk	Prepare Vietnamese label before arrival	Original label, importer details

FAQ

Does an air purifier require an import license?

Do not conclude absolutely by product name. A standard new consumer model without Wi-Fi/Bluetooth/RF or medical claims is often handled under normal customs procedures, but the actual model and technical file must be reviewed.

What is the reference HS code?

8421.39.20 – Air purifiers. Final classification depends on the catalogue, datasheet, operating principle and goods condition.

Is Wi-Fi/Bluetooth relevant?

Yes. Wireless modules may trigger ICT/RF conformity and quality management review if the product is listed.

Is Vietnamese supplementary labeling required?

For goods circulated in Vietnam, labeling must be reviewed under Decree 43/2017 and Decree 111/2021.

Can C/O reduce duty?

Yes, where the C/O is valid and FTA conditions are met.

Are samples/warranty goods handled like commercial goods?

Not automatically; customs type and purpose should be reviewed.

What is HS Code? Read
Common C/O rejection risks Read
Import product labeling checklist Read
DEM/DET cost control before ETA Read

E2E IMPLEMENTATION SUPPORT FROM TGIMEX

This guide provides the compliance map. In actual shipment execution, the importer should review catalogue, datasheet, model, documents, origin and import purpose. For shipments with sectoral policy, C/O or labeling exposure, files should be checked before ETA; even a small discrepancy across invoice, packing list, catalogue, datasheet, C/O or label can cause document supplementation, delayed clearance or unplanned storage charges.

FOOTNOTE – TERMS

ETA: Estimated Time of Arrival; DEM/DET: demurrage/detention; C/O: Certificate of Origin; HS Code: Harmonized System classification code; Compliance: regulatory and sectoral-policy compliance; E2E: End-to-End workflow.

This English version is for operational reference and is not an official legal translation.

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