Janitorial technicians, carpet cleaners…everyone that uses this vacuum recommends it over any tools-on-board vacuum for powerful residential and commercial cleaning. The PF14 and PF18 vacuums feature dual motors for dedicated power to both the vacuum motor and the brush roll. The dual motors maximize cleaning efficiency and increase productivity. Add the 105 CFM and you have an unbeatable combination of suction power and pick-up ability. Even indoor air quality isn’t an issue with the clean air high filtration system. These vacs have a totally sealed filtration system that does not allow dust to escape and you can convert to HEPA just by adding a filter. You would expect to pay much more for a vacuum with this many features.