Integra Boost Humidiccant 55%Integra Boost Humidiccant uses patent pending technology that releases or absorbs moisture, maintaining relative humidity in a contained environment at or about 55% relative humidity. Each individually wrapped Integra Boost packet includes a replacement indicator card. When the round dot turns from pink to blue, its time to replace your Integra Boost pack. Available in 4 g (2 1 4 in x 2 in x 1 8 in), 8 g (2 3 4 in x 2 1 2 in x 1 8 in) or 67 g (4 in x