Integra Boost 69% Humidity Control Regulator

A two-way humidity regulator at 69 per cent, twenty-five to the pack. It releases moisture when the air in your humidor is dry and absorbs it when the air is damp, which is what separates a two-way pack from a sponge. Sixty-nine per cent is the general-purpose setting and suits most collections. Replacement indicator cards are available separately.