The Scentcatcher is essentially a camera and printer for smell, the art of Scentography!
Smell has long been recognised to recall distant memories long past (the Proustian Effect) the reaccoliection of the ses smalle asn therie associated memories are high in detail and can 'take you back' instantly. Making you feel better.
The smell of home cooking for example. Technology in recent years has progressed such that it is now possible to analyze the air and synthesize the scent in it at home. You can catch your own scents.