Brazil NCM · 8-digit subitem

NCM 8421.39.30 – Oxygen concentrators, 6 l/min or less

NCM 8421.39.30 (also written 84213930) is Brazil's code for oxygen concentrators, 6 l/min or less. Its first 6 digits are HS code 8421.39.

Official description of NCM 8421.39.30

PortuguêsOfficial
Concentradores de oxigênio por depuração do ar, com capacidade de saída inferior ou igual a 6 l/min
EnglishUnofficial translation

Oxygen concentrators by air purification, with an output capacity of 6 l/min or less

Nomenclatura Comum do Mercosul (Siscomex). Updated Oct 2026 · In force since Apr 2022 (Res Gecex 272/2021).

How to read NCM 8421.39.30

84Chapter 21Heading 39Subheading

HS code 8421.39
Same in every country

3Item 0Subitem

Added by Mercosur
Brazil, Argentina, Paraguay, Uruguay

The first 6 digits are the international HS code, so their meaning is the same in every country; Brazil publishes the text in Portuguese. Digits 7 and 8 are Brazil's own split of that HS code. The full 8-digit code is used on import declarations (DUIMP), invoices (NF-e) and tax filings.

Full classification path

  1. Chapter 84 Machinery and mechanical appliances, boilers, nuclear reactors; parts thereof Reatores nucleares, caldeiras, máquinas, aparelhos e instrumentos mecânicos, e suas partes.
  2. Heading 84.21 Centrifuges, including centrifugal dryers; filtering or purifying machinery and apparatus for liquids or gases Centrifugadores, incluindo os secadores centrífugos; aparelhos para filtrar ou depurar líquidos ou gases.
  3. Group 8421.3 Filtering or purifying machinery and apparatus for gases: Aparelhos para filtrar ou depurar gases:
  4. Subheading 8421.39 Machinery; for filtering or purifying gases, other than intake air filters, catalytic converters or particulate filters for internal combustion engines Outros
  5. Subitem 8421.39.30 Oxygen concentrators by air purification, with an output capacity of 6 l/min or less Concentradores de oxigênio por depuração do ar, com capacidade de saída inferior ou igual a 6 l/min

Other NCM codes under HS 8421.39

8421.39.10 Electrostatic filters for gasesFiltros eletrostáticos 8421.39.90 Other gas filtering or purifying machineryOutros

Questions about NCM 8421.39.30

What is NCM 8421.39.30?

NCM 8421.39.30 (84213930) is the Brazilian (Mercosur) code for oxygen concentrators, 6 l/min or less. Its official Portuguese description is “Concentradores de oxigênio por depuração do ar, com capacidade de saída inferior ou igual a 6 l/min”.

What is the HS code for NCM 8421.39.30?

HS 8421.39 (Machinery; for filtering or purifying gases, other than intake air filters, catalytic converters or particulate filters for internal combustion engines). The first 6 digits of an NCM code are its international HS code; the last 2 digits are Brazil's own split.

Is an NCM code the same as an HS code?

The first 6 digits are the same in every country. NCM adds an item digit (7th) and a subitem digit (8th). A code ending in 00 means Brazil does not split that HS code further.

Which countries use NCM 8421.39.30?

All Mercosur members use the same NCM codes: Argentina, Brazil, Paraguay and Uruguay.

Source: Siscomex Classif NCM table, updated Oct 2026 (Resolução Gecex nº 926/2026). The Portuguese text is the official one; the English is our translation.