Turbo blowers offer greater economic benefits when compared with compressors and other competing equipment in producing the large amounts of compressed air that are needed in aeration basins at waste water treatment plants.  According to ABB Fläkt Oy in Finland, benefits include lower investment and running costs, reliable and trouble-free operation, and a short delivery time. Four blowers from the company's turbo blower range for aeration, known as Exvel Bio, are now in operation at the Glenelg waste-water treatment plant in Adelaide, Australia.