84 Machinery and mechanical appliances, boilers, nuclear reactors; parts thereof
8414 Air or vacuum pumps, air or other gas compressors and fans; ventilating or recycling hoods incorporating a fan; gas-tight biological safety cabinets whether or not fitted with filters
8414.90Parts, of air or vacuum pumps, air or other gas compressors and fans, ventilating or recycling hoods incorporating a fan