In our research, we have found the whip system to provide “the best of both worlds” when it comes to cleaning. With it, we are able to get the full contact cleaning associated with brush cleaning while offering the flexibility of pneumatic or high-pressure air cleaning methods to get around elbows and past dampers that are in your ducts. Our testing has shown us that brush systems can often close dampers, stop at elbows, and in older homes where the ductwork may be more fragile, it can even cause it to come apart.