CES 2019: Smelly advent calendar beats 'nose fatigue' January 06, 2019 at 03:09PMhttps://https://bbc.in/2F9OrU1 A smelly "advent calendar" helps people identify their favourite fragrances.

A smelly "advent calendar" helps people identify their favourite fragrances.

from BBC News - World https://bbc.in/2Ax9Jqw