# United States tariff lines under HS 9019.20

> The United States tariff splits HS 9019.20 (ozone therapy, oxygen therapy, aerosol therapy, artificial respiration or other therapeutic respiration apparatus) into 1 national line: 9019.20.00.00 (ozone therapy, oxygen therapy, aerosol therapy, artificial respiration or other therapeutic respiration apparatus; parts and accessories thereof). Every United States line under 9019.20 is free of general (MFN) duty.

Source: https://border.bot/countries/united-states/hs-codes/901920
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 90](https://border.bot/countries/united-states/hs-codes/90) / [9019.20](https://border.bot/countries/united-states/hs-codes/901920)

## Key facts

- HS subheading: [9019.20](https://border.bot/hs-codes/901920)
- Duty (MFN): Free
- National lines: 1
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 90: Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof

## United States lines under 9019.20

The United States tariff splits HS 9019.20 (ozone therapy, oxygen therapy, aerosol therapy, artificial respiration or other therapeutic respiration apparatus) into 1 national line: 9019.20.00.00 (ozone therapy, oxygen therapy, aerosol therapy, artificial respiration or other therapeutic respiration apparatus; parts and accessories thereof).

Every United States line under 9019.20 is free of general (MFN) duty.

- [9019.20.00.00](https://border.bot/countries/united-states/hs-codes/9019200000) Ozone therapy, oxygen therapy, aerosol therapy, artificial respiration or other therapeutic respiration apparatus; parts and accessories thereof. Duty (MFN): free

## In other countries

No other national tariff on border.bot has live lines under 9019.20 yet.

- [The Harmonized System text for 9019.20](https://border.bot/hs-codes/901920)

- Previous subheading: [9019.10](https://border.bot/countries/united-states/hs-codes/901910) Mechano-therapy appliances; massage apparatus; psychological aptitude-testing apparatus; parts and accessories thereof
- Next subheading: [9020.00](https://border.bot/countries/united-states/hs-codes/902000) Other breathing appliances and gas masks, excluding protective masks having neither mechanical parts nor replaceable filters; parts and accessories thereof

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 9019.20?

The United States tariff splits HS 9019.20 (ozone therapy, oxygen therapy, aerosol therapy, artificial respiration or other therapeutic respiration apparatus) into 1 national line: 9019.20.00.00 (ozone therapy, oxygen therapy, aerosol therapy, artificial respiration or other therapeutic respiration apparatus; parts and accessories thereof).

### What is the duty on HS 9019.20 in the United States?

Every United States line under 9019.20 is free of general (MFN) duty.

## Sources and updates

The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

This page was last updated on 9 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

Official source files:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/901920.json