Thanks to the revolutionary technology of Integra Boost, the relative humidity of the desired product always remains around 55%. Use our Integra Boost 2-Way Humidity Control Packs to control humidity in enclosed spaces. Our patented technology either releases or absorbs moisture, maintaining the relative humidity in an enclosed environment at 55%. Additionally, our Integra Boost packs include a smart, easy-to-read replacement indicator card. Simply replace the old set with a new one when the dot on the replacement indicator card turns bright blue.