Using the DeWalt DWH161B dust extractor is easy. First, attach the dust extractor to your tool using the appropriate connection. You can use the shoulder strap or the belt hook to position it comfortably according to your work needs. If you have the Wireless Tool Control key fob (sold separately), link it to your tool and the extractor for convenient remote activation. When using it with a rotary hammer, make sure to use the correct shroud to meet OSHA requirements. For maintenance, regularly check the HEPA filter. Since it has a filter - cleaning mechanism, use it to keep the filter working well. When the dust box is full, empty it to maintain the extractor's performance. Always handle the extractor with care to avoid damage, and keep it in a dry place when not in use.