Powerful, ruggedly built and highly efficient, the Hilti VC 20-UM vacuum cleaner is the key to a clean, virtually dustless workplace. Offering impressively high suction performance and a practical, user-friendly design, its great versatility makes this wet / dry universal vacuum cleaner the perfect partner for a wide range of Hilti tools. Constantly high suction performance is guaranteed by the “Hilti AirBoost filter technique”, an innovative system that cleans the filter by briefly reversing the air flow within the appliance every 15 seconds. The vacuum cleaner’s design positions it clearly in its supporting role within the Hilti product range.