The Dyson V9 Submarine Cordless Vacuum 303946-01 is the ideal balance of power and weight that now washes hard floors. 100 Air Watts of fade-free suction(1) powered by a Dyson Hyperdymium motor spinning at up to 120000rpm(1) with up to 40 minutes run time(2) across an advanced seven-cell lithium battery. The Submarine wet roller heads motorised microfibre roller washes spills and stains off hard floors while the Motorbar cleaner head with Polycarbonate vanes lifts and spirals hair straight into the bin. The fully sealed whole machine filtration captures dust particles and allergens to 0.3 microns up to 99.99%(3). Disclaimers: (1) Per ASTM F558-21 in Boost mode at the inlet. (2) In Eco mode. Run time may vary depending on usage and floor type. (3) Tested to ASTM F1977 on highest mode.