Using this Bosch Readyy'y inner filter is easy. First, turn off your cordless vacuum and unplug it. Then, open the dust container unit. Take out the old filter and replace it with this new one. Make sure it fits snugly. When using the vacuum, don't overfill the dust container as it can put extra strain on the filter. For maintenance, regularly check the filter for dirt and debris. If it looks dirty, you can gently tap it to remove loose particles. Every few months, you can wash it with mild soap and water. Let it dry completely before putting it back in the vacuum. This will help keep your vacuum running efficiently and extend the life of the filter.