A Roots blower, often referred to as a positive displacement blower, operates using two lobes that rotate in opposite directions to capture and move air or gas. It provides a consistent volume of air, no matter the pressure, which makes it perfect for situations that need a steady airflow. While Roots blowers can achieve higher pressures or vacuums compared to regenerative blowers, they tend to be noisier and require more upkeep. These blowers are commonly found in wastewater treatment, pneumatic conveying, and industrial vacuum systems.