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HSChapter 90
U.S. imports of ozone, oxygen & aerosol therapy and artificial respiration apparatus (HS 901920) totaled $321.1M in July 2026, traded with 50 countries.
Importers of Ozone, Oxygen & Aerosol Therapy and Artificial Respiration Apparatus paid $5.3M in duties in July 2026 — an effective duty rate of 10% on $52.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Ozone, Oxygen & Aerosol Therapy and Artificial Respiration Apparatus imports of $321.1M in July 2026 ran 11% below the year-to-date monthly average of $362.5M.
Last updated: July 2026 dataRespiratory therapy equipment — including oxygen concentrators, CPAP/BiPAP devices, aerosol nebulizers, and artificial respiration apparatus — falls under this heading and is subject to FDA medical device regulation, with many life-sustaining devices requiring 510(k) clearance or premarket approval before US distribution. Singapore leads US imports under this heading, a reflection of the significant medical-device manufacturing base established there by multinational OEMs, with China and Mexico also supplying meaningful volumes. The heading consolidates into a single 10-digit tariff line (9019200000), so the classification question is typically whether a device performs therapeutic respiration versus merely delivering gas (which may fall elsewhere in Chapter 90 or under Chapter 84).
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
10.8K shipments/mo
The key distinction is therapeutic function: apparatus designed to treat a medical condition through ozone, oxygen, aerosol, or artificial respiration belongs here, while equipment that merely supplies or measures gas flow (e.g., industrial oxygen regulators) typically falls under Chapter 84 or other Chapter 90 headings. CBP binding rulings and the Explanatory Notes to heading 9019 are the primary reference points; a licensed customs broker can help assess borderline devices.
CPAP and BiPAP devices are Class II medical devices regulated by FDA's CDRH and generally require 510(k) premarket notification clearance. The foreign manufacturer must be registered with FDA and the device listed before importation. FDA may detain shipments at the port of entry if clearance documentation is not in order. Importers should work with a regulatory affairs specialist to confirm device classification and clearance status prior to shipment.
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Subheading 1 of 2 in heading 9019
Subheading 901920 · $321.1M of $472.8M
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 9019200000 | Ozone,Oxygen,Etc Therapy, Respiration Apparatus,Pt | $321.1M | 1.64% | 16.31% | $5.3M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 9019200000 | Ozone,Oxygen,Etc Therapy, Respiration Apparatus,Pt | $99.8M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$321.1MYoY · Pro
Exports
$99.8MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Singapore and China together supply 47% of it.
customs district
destination
entry
rate provision · imports
83.7% enters free of duty; the effective duty rate is 1.64%.