Using the Metabo ASR 35 ACP HEPA vacuum cleaner is easy. First, make sure you've attached the 10 - foot suction hose. You can connect your power tool to the power socket, and it'll turn on and off automatically with the vacuum. When you start cleaning, you can adjust the suction power according to what you're cleaning. If you're vacuuming liquids, the vacuum will shut down once it reaches the maximum fill level, so you don't have to worry about over - filling. When it comes to dust, the HEPA filter will trap most of the fine particles. The AutoClean feature will clean the filter for you during continuous use, but if the suction performance drops, the filters will vibrate to clean themselves. After use, use the cable winding mechanism to tidy up the cable. Also, make sure to store the accessories in the practical accessory case. Keep in mind that when using accessories, the antistatic basic equipment will prevent static charge. And don't forget to check the spec sheet for more detailed information about the product.