A combination of a vacuum cleaner and a power tool generating dust during its operation, the vacuum cleaner adapted for pneumatic connection to the power tool, in order to draw at least part of the dust away from the tool into the vacuum cleaner, the vacuum cleaner operating under certain operation parameters when it is turned on, the vacuum cleaner comprising a motor, the motor's speed being one of the operation parameters, and the vacuum cleaner comprising at least one filter element, which is automatically cleaned from time to time during a filter cleaning process by inverting the air flow through the at least one filter element, a frequency of the filter cleaning process being one of the operation parameters, the vacuum cleaner comprising - reception means (13; 41, 41') for receiving information regarding characteristics of the tool and/or its current use from transmission means of the tool, the information comprising at least one of a group consisting of - a unique identification of the manufacturer of the tool and/or the type of tool, - a maximum speed a motor of the tool can reach, - a current speed of the motor of the tool, - a maximum amount of dust per time unit the tool can generate, - an amount of dust per time unit currently generated by the tool, - type or age of a currently mounted working element of the tool, - characteristics regarding a workpiece or a workpiece's working surface currently worked by the tool, and - a minimum value for a volume of aspired dust laden air per time unit necessary for drawing a predefined amount of the dust generated by the tool, - processing and calculation means for processing the received information and for calculating a correction signal for at least one of the vacuum cleaner's operation parameters based on the received information, the correction signal being used for updating the value of at least one of the operation parameters of the vacuum cleaner, and - adjustment means for adjusting the at least one operation parameter based on the calculated correction signal, characterized in that the vacuum cleaner has electric connection means for connecting the tool to the vacuum cleaner by means of an electric power line providing the tool with the electric power necessary for its operation, wherein the reception means (13; 41, 41') are adapted to receive the information from the tool via the power line by means of a power line communication between the tool and the vacuum cleaner. - reception means (13; 41, 41') for receiving information regarding characteristics of the tool and/or its current use from transmission means of the tool, the information comprising at least one of a group consisting of - a unique identification of the manufacturer of the tool and/or the type of tool, - a maximum speed a motor of the tool can reach, - a current speed of the motor of the tool, - a maximum amount of dust per time unit the tool can generate, - an amount of dust per time unit currently generated by the tool, - type or age of a currently mounted working element of the tool, - characteristics regarding a workpiece or a workpiece's working surface currently worked by the tool, and - a minimum value for a volume of aspired dust laden air per time unit necessary for drawing a predefined amount of the dust generated by the tool, - a unique identification of the manufacturer of the tool and/or the type of tool, - a maximum speed a motor of the tool can reach, - a current speed of the motor of the tool, - a maximum amount of dust per time unit the tool can generate, - an amount of dust per time unit currently generated by the tool, - type or age of a currently mounted working element of the tool, - characteristics regarding a workpiece or a workpiece's working surface currently worked by the tool, and - a minimum value for a volume of aspired dust laden air per time unit necessary for drawing a predefined amount of the dust generated by the tool, - processing and calculation means for processing the received information and for calculating a correction signal for at least one of the vacuum cleaner's operation parameters based on the received information, the correction signal being used for updating the value of at least one of the operation parameters of the vacuum cleaner, and - adjustment means for adjusting the at least one operation parameter based on the calculated correction signal,