The latest offering from Rotobrush International LLC, a Texas-based manufacturer of duct cleaning products, is the BlowBeast Negative Air Machine. The new unit was on display at this year’s AHR Expo. Larger than its companion BrushBeast, the BlowBeast is designed for commercial and industrial applications larger than 36 inches in vertical height. The BrushBeast is for smaller residential and light commercial jobs.
The BlowBeast weighs 145 pounds total. It has an air flow of 2,700 cfm free air (2,100 with HEPA filtration). The BrushBeast had been Rotobrush’s most powerful system. The BrushBeast runs on one 13 amp breaker, while the BlowBeast requires two. The BrushBeast is designed for one-person operation, while the BlowBeast requires two people. Although the units are powerful, as the names imply, the decibel level is low enough to use in a hospital, a growing area of demand for duct cleaning that requires extra certification.