Section 16 Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof 84 14 Air or vacuum pumps, air or other gas compressors and fans; ventilatin g or recycling hoods incorporating a fan, whether or not fitted withfi lters; gas-tight biological safety cabinets, whether or not fitted wit h filters. Commodity Code Description 84 14 10 Vacuum pumps 84 14 20 Hand or foot-operated air pumps 84 14 30 Compressors of a kind used in refrigerating equipment 84 14 40 Air compressors mounted on a wheeled chassis for towing 84 14 51 Table, floor, wall... fans, with self-contained electric motor <=125w 84 14 59 Other 84 14 60 Hoods having a maximum horizontal side not exceeding 120 cm 84 14 70 Gas-tight biological safety cabinets 84 14 80 Other 84 14 90 Parts