Approved for M Class hazardous dust this vacuum cleaner has a minimum 99.9% filtration efficiency. Working with dust can be hazardous to health, with this Nilfisk vacuum cleaner you can work in a clean safe environment without causing damage to health. With an air flow of 3700 l/min and 250/25 mbar/kPa vacuum power. The large 30 litre container capacity allows you to collect for longer without the need for emptying.Fitted with a washable PET fleece filter element which reduces operating costs this vacuum cleaner is suitable for wet and dry applications. Featuring a semi-automatic push & clean automatic XtremeClean filter system keeps the filter clean to increase efficiency and reduce downtime. The anti-static hose system and automatic start/stop is the perfect feature for tradesmen who work with power tools.