Edelfurnier is a marketing term that actually means veneer, so the doors are coated with a very thin layer of wood. (like laminate)
UPS - something seems to have been confused here :rolleyes:?
Otherwise, honeycomb inserts (cardboard) are also used by brand manufacturers. All doors provide good privacy :), otherwise it depends on the intended use.
Honeycomb: Merely privacy protection.
Tube particle strips: Affordable, not significantly better.
Tube particle insert: All-rounder, recommended.
Solid insert: Really heavy, 3-part hinges, not always sensible.
With aluminum insert: Barrier to unheated rooms. Expensive.
And of course glass, solid wood......
The addition "Edel" is, as mentioned, marketing. CPL can be cleaned better, but there are also differences in processing. A door only becomes really expensive with a glass insert.
Best regards,
TomTom.