Using the Volta U4013 Filter Set is easy. First, turn off and unplug your Volta Signum U4013 machine. Locate the dust canister and remove the old foam filter. Replace it with the new G5960190001 foam filter. Next, find the area where the Hepa filter is installed and swap out the old one with the A5960010002R Hepa filter. Finally, at the rear of the machine, replace the exhaust filter with the B5960083901R one. When it comes to maintenance, check the filters regularly. If they look dirty or clogged, it's time to replace them. Always make sure to use genuine parts to keep your machine working well. And remember, if you have any questions, our support team is here to help.