Hoover WindTunnel Bagless Canister Vacuum, Model No. S3755 : Patented WindTunnel Technology Bagless system with easy-empty dirt cup HEPA filtration Fingertip controls for variable speed, on/off and brush roll on/off Telescopic chrome wands with quick-release grip and nozzle Covered tool storage Cord rewind Ultraquiet operation Soft non-marring wheels Model No.