Using the Bosch VF410 filter is straightforward. First, make sure your Bosch GAS20 - 17A 300 - CFM dust extractor is turned off. Then, easily install the flat filter as it doesn't require any complex steps. For wet or dry vacuuming, just attach the filter to your dust extractor and start your cleaning. When it comes to maintenance, after each use, check the filter for any large debris and remove it gently. If it's really dirty, you can wash it according to the manufacturer's instructions. Remember, this filter is not hypoallergenic, so if you have allergies, take extra care. Also, keep the filter dry when not in use to prevent mold growth.