Boveda 75% Relative Humidity

Use one (1) Size 60 for every 25 cigars your container can hold.   75% RH is for: Only extremely dry conditions, such as high altitudes and desert environments. It overcompensates in extreme dry conditions to maintain a safe, stable RH for cigars (between 65 and 72%). Should not be used in long-term storage and aging of cigars. Never use B75 in airtight cigar storage containers, including tupperdors or humidor bags. A Single Size 60 is for:  Small to medium humidors, tupperdors, coolerdors, and travel cases  Refilling medium and large Boveda Humidor Bags