Method for operating a surface treatment installation, set of filter modules and surface treatment installation

A method for operating a surface treatment installation comprising the steps of:

• selecting at least one one-way filter module from a set of one-way filter modules based on an overspray type requiring absorption in a coating booth where the at least one one-way filter module is to be used, wherein each one-way filter module in the set of one-way filter modules has
• a housing having an identical module inlet and an identical module outlet, and
• a filter unit, wherein the set of one-way filter modules includes at least two filter modules having different filter units;
• inserting the at least one one-way filter module in the coating booth;
• taking up and carrying overspray produced in the coating booth by an air stream to one or more one-way filter modules in which overspray is separated, wherein, once a limit loading with overspray is reached, a one-way filter module is exchanged for an empty one-way filter module, wherein
• each filter unit comprises filter structures which define a flow pathway for the overspray carried through the filter housing, wherein the at least two filter modules having different filter units have
• filter structures having a different shape, and/or
• a different follow pathway for the overspray carried through the filter housing.