Using this Volta U4013 Hepa canister filter is easy. First, turn off your Volta Signum U4013 device. Then, open the dust canister and replace the old filter with this new one. Make sure it fits snugly. When using, keep the device in a well - ventilated area. As for maintenance, check the filter regularly. If it looks dirty or clogged, it's time to replace it. This will keep your device working at its best and ensure good air quality. Always handle the filter gently to avoid any damage.