Roots/Twin lobe/Trilobe blowers fall in the category of positive displacement machines with simple constructions and are highly efficient in operation used for transfixing atmospheric oxygen into the effluent/water/wastewater.A complete range of standard blowers is available for flow rates from 10 cum/hr. to 15000 cum/hr. in single stage, working pressures upto 1 bar (1 kg/sq.cm).