The TaskVac Commercial Cordless Lightweight Upright vacuum provides fade-free vacuuming power with its Lithium Ion battery technology. With Hoover's patented Windtunnel Technology, the TaskVac uses 3 air tunnels to lift dirt from floors. Never wonder how much battery power is left with the TaskVac's battery fuel gauge. Easily switch from carpet to hardwoods with a powered brushroll on/off switch. Just empty the bottom release dirt cup for easy clean up.