Using this Volta foam filter cartridge is easy. First, make sure your vacuum cleaner is turned off and unplugged. Then, locate the filter compartment in your vacuum cleaner, open it, and remove the old filter. Place the new Volta filter cartridge in the compartment, ensuring it fits snugly. Close the compartment, and you're ready to use your vacuum cleaner again. As for maintenance, it's a good idea to check the filter regularly, especially if you use your vacuum cleaner frequently. If the filter looks dirty or clogged, you can gently wash it with mild soap and water. Let it dry completely before putting it back in the vacuum cleaner. Also, always keep in mind to handle the filter with care to avoid any damage. This way, your filter will work effectively for a long time, keeping your vacuum cleaner in top - notch condition.