THIS PRODUCT IS INTENDED FOR LARGE CONFINED SPACES THIS 3 BLADE IMPELLER CAN BE USED FOR VENTILATING OR EXTRICATING AIR. IT COMES WITH 16 GA COLD ROLLED STEEL HOUSING AND INTEGRATED CARRY HANDLES. IT ALSO HAS RUBBER FEET AND IS POWER COATED IN SAFETY ORANGE. THE PRODUCT HAS A LIMITED WARRANTY OF 1 YEAR.