Choosing VSD compressor technology from Atlas Copco has helped International Flavours and Fragrances (IFF), a leading global creator of flavours and fragrances for consumer products, achieve major energy savings at its UK manufacturing plant in Haverhill, Suffolk. IFF is a long-standing customer of Atlas Copco Compressors who, prior to the expansion programme, had originally installed an oil-free, fixed speed ZT3A together with a ZT290 machine on a service contract at the site. The compressors provide a hundred per cent oil-free air for process instrumentation, the operation of pneumatic valves for powder transfer and plant-to-plant product conveying. Performance logging of the compressors, carried out prior to the expansion highlighted the fact that significant energy savings could be achieved with the installation of a single variable speed drive compressor to replace both existing units.