The Ultimaker Boxed Filter Assembly is the EPA filter for the Air Manager of the Ultimaker 2+ Connect and S5. This spare part should be replaced regularly depending on wear and printer usage. A message will also appear on the display after 1500 hours of printing.
Wear and tear depends primarily on the filaments being used. Fibre-reinforced materials produce more fine particles in the ambient air than conventional PLA. As a rule of thumb, we recommend replacing the filter every three months.