A Mantrip is what they use to transport workers in and out of coal mines. Recently, a law was introduced that required equipment to be modified or replaced if it would expose workers to high noise levels for long time periods. Alpha Services Inc of Illinois, came up with the perfect solution. VORTEX!

According to Ty Elliott, prior to Vortexing the roof, top and bottom the inside and complete understructure of the Man Ride, the decibels would hit 168 Db. After Vortexing, the decibel level dropped instanly to an amazing 96 Db with the use of Vortex.