From Chapter 90: Chapter 90
| HTS Code | Description | General Duty |
|---|---|---|
| 9020004000 | Other breathing appliances and gas masks, excluding protective masks having neither mechanical parts nor replaceable filters; parts and accessories thereof Underwater breathing devices designed as a complete unit to be carried on the person and not requiring attendants | Free |
| 9020006000 | Other breathing appliances and gas masks, excluding protective masks having neither mechanical parts nor replaceable filters; parts and accessories thereof Other breathing appliances and gas masks | 2.5% |
| 9020009000 | Other breathing appliances and gas masks, excluding protective masks having neither mechanical parts nor replaceable filters; parts and accessories thereof Other | 2.5% |