Billy Goat’s 33” QUIET VAC™ touts the lowest noise level in its class and features unique cyclonic filtration along with exclusive dust sock technology that dramatically reduces dust in dry conditions and takes our industrial class hard surface unit to the next level. Ideal for wide area commercial industrial and municipal cleanup applications such as tarmac school campuses hospitals hotels parks churches airport pedestrian areas resorts city streets and sidewalks. QUIET VAC™ is the first pedestrian vacuum that has a shift-on-the-fly hydrostatic transmission with infinite forward and reverse speeds making the unit nimble and easy to maneuver in tight areas wide open areas or while driving or pushing manually.