The humidors aim to recreate the typical humidity of Cuban and non-Cuban cigars, guaranteeing their conservation. These are undoubtedly born with Zino Davidoff, after returning from one of his many trips to Latin America.
The latter was the first to think of a special container that had a particular system to maintain the optimal humidity for the cigar similar to that of Latin American or Caribbean origin. 
From Zino Davidoff to the present day many things have changed, especially thanks to the technology that allows us to have ever more efficient and safe humidors, both at home and when travelling.