Gtech AirRam High-power Cordless Vacuum Cleaner, Graphite The innovative Gtech AirRam will change the way you vacuum your home forever, making cleaning faster, easier and more convenient. High performance and versatile cleaning on carpet, hard floors and tiled floors and it weighs only 7.7 pounds. Clean the average home on one 4 hour charge with up to 40 minutes of run time with 22V Lithium-ion technology. The AirRam is bag-less with lifetime washable filters. No expensive replacements required. Powerful rotating brush bars make it ideal for pet hair.