Integra Boost Two-Way Humidity Control Packs are offered in various sizes and humidity percentages. Sizes are based on the size of your humidor and the amount of sticks that it can carry. Percentages are based on the climate that you live as well as your humidity level percentage.
All Integra Boost Two-Way Humidity Control Packs come with a sheet that turns dark blue and indicates when your pack needs to be replaced. Please note that 84% two-way humidity packs are primarily only used to help initially season your humidor.