Previously in this industry, almost all blowers were of the two-lobe type, whose major shortcomings were high noise, excessive vibration and lower efficiency. Pristair, promoted by a team of Indian Mechanical & Chemical Engineers with global industry experience of three decades in the Middle East & Indian Rotating Machinery Markets, developed the patent-pending "Tri-Sprat" machining process that led to the designs for our leading edge family of Tri-lobe Blowers & Vacuum Pumps that offer better-than-industry standards in low noise, reduced vibrations and high efficiency operation.