0 Method for the production of Method for the production of
enthalpy exchanger elements enthalpy exchanger elements
comprising steps of: comprising the steps of:
a a) perforating a flat plate ele- a) perforating a flat plate element (1) according to a prede- ment (1) according to a predetermined perforation pattern termined perforation pattern
within the plate outer dimen- within the plate outer dimensions; sions;
b b) forming the plate element (1) b) applying to at least one side
into a desired embossing pattern (1a) of the plate element (1)