The gas 55 m afc professional wetdry extractor 230v from bosch is a versatile wetdry dust extractor with automatic filter cleaning and a large volume tank it boasts a space saving flat pleated filter for optimum utilisation of the 55 litre tank and is ideal for large amounts of dust continuous work progress can be made by the user due to its sustained suction power and automatic filter cleaning afc it is a certified safety dust extractor that meets dust class m in accordance with the eu