Compact, light, manageable and powerful backpack vacuum cleaner. You wear it as a backpack. Your hands are free, it doesn’t hamper movements and allows to work faster and more effectively and the job results lighter. Maximun protection and efficacy: (cartridge filter + fleece filter bag + exhaust air and motors protection filters). Accessory holders. Lithium batteries guarantee up to 55 minutes working time and very fast charging time (around 1h). W1 BC LITHIUM, with the SWIFT version, represents the perfect mix between rapidity and efficiency, thanks to lithium batteries with a running time of 25 minutes. No “memory effect”: the batteries can be charged at any time, even partially, without any risk of damage.