Using this filter is easy. First, turn off and unplug your Rapido handheld vacuum. Then, open the filter compartment and remove the old filter. Place the new filter in the compartment, making sure it fits snugly. Close the compartment, and you're ready to start cleaning. When it comes to maintenance, it's a good idea to check the filter regularly. If it looks dirty or clogged, it's time to replace it. Keep in mind to always turn off and unplug the vacuum before handling the filter to avoid any accidents. And when storing the filter, keep it in a dry place to prevent damage.