Well assuming your PACK_PURPOSE elements are enclosed in a PACK_PURPOSES element, otherwise your XML is not well-formed, then I'd apply-templates to
Code:
/PACK_PURPOSES/PACK_PURPOSE[not(MovementType = 'POLCAN')]
You can then have a template match PACK_PURPOSE and output the LevelOfCoverDisplay and whatever else you need.
--
Joe (
Microsoft MVP - XML)