| 84 | Reactors nuclear, boilers, equipment and mechanical devices; their parts |
| 8414 | Air or vacuum pumps, air or other gas compressors and fans; ventilating or recycling hoods or cabinets with a fan, with or without filter |
| 841480 | Other air or vacuum pumps, air or gas compressors |
| 84148080 | Air or vacuum pumps, air or gas compressors and ventiventilyatory; ventilating or recycling hoods or hoods incorporating a fan with filter ... etc., etc. |