As the sander fills the bag with wood waste, air flow drops off considerably as the bag becomes clogged with dust. Fine particles are then forced through the woven fabric of the bag, creating large clouds of messy, harmful dust. When the operator stops to shake the bag clean they scatter dust everywhere, exacerbating the problem.dcs-other-vac-systems.

A minimum of 200 CFM is needed for a 110V system to overcome air resistance in the flex hose. To accomplish this you need higher horsepower, large diameter hoses, and shorter hose runs. This leads to a loss of mobility, louder noise, more weight, ineffective dust pick up at the source, and necessitates having to locate the vacuum in the work area.