Using this filter set is easy. First, make sure your Volta Lite II U1850 or Forte U1851 appliance is turned off. Then, carefully remove the old filters from the designated filter compartments. Place the new A4080010005R hepa filter, G4080190001 micromesh exhaust filter, and G4080180001 foam filter in their respective places. Ensure they fit snugly. When it comes to maintenance, check the filters regularly. If they look dirty or clogged, it's time to replace them. Always keep the filters dry and away from any sharp objects that could damage them. This will help your appliance work at its best and keep the air clean.