HTSUS, United States

9020.00.40.00

Underwater breathing devices designed as a complete unit to be carried on the person and not requiring attendants

Classification path

  1. Other breathing appliances and gas masks, excluding protective masks having neither mechanical parts nor replaceable filters; parts and accessories thereof
  2. Underwater breathing devices designed as a complete unit to be carried on the person and not requiring attendants

Rates of duty

General (MFN)
Free
Column 2Cuba, North Korea, Russia, Belarus
27.5%
Unit of quantity
No.

Related lines in heading 9020

About heading 9020

Other breathing appliances and gas masks, excluding protective masks having neither mechanical parts nor replaceable filters; parts and accessories thereof

Heading 9020 covers breathing appliances and gas masks other than simple protective masks that have neither mechanical parts nor replaceable filters, plus parts and accessories. It has three lines: complete underwater breathing units carried on the person, other breathing appliances and gas masks, and other parts and accessories.

Full guide to heading 9020

Products in this heading

  • Complete scuba underwater breathing unit carried on the person
  • Self-contained breathing apparatus used by firefighters
  • Full-face gas mask with replaceable filter
  • Powered air-purifying respirator with mechanical blower
  • Escape breathing apparatus with cylinder
  • Replacement filter cartridges for gas masks
  • Spare breathing hoses and valves for breathing appliances

Frequently asked questions

What is the HTS code for a complete underwater breathing unit?

Complete underwater breathing devices designed as a unit carried on the person and not requiring attendants are 9020.00.40.00, with a general (MFN) rate of Free.

What is the duty on other breathing appliances and gas masks?

The general (MFN) rate for 9020.00.60.00 is 2.5%.

How do I classify a replacement filter cartridge for a gas mask?

A replacement filter cartridge is a part or accessory of a breathing appliance and falls in 9020.00.90.00, with a general (MFN) rate of 2.5%.

Source: USITC Harmonized Tariff Schedule, retrieved October 22, 2026.

HTS 9020.00.40.00: Underwater breathing devices designed as a complete unit to..., Free duty | HTSBase