CARBOLIME® is a granular soda lime absorbent designed for efficient carbon dioxide removal in closed and semi-closed breathing circuits. Low dust formulation, optimized particle size, and lower bulk density help reduce waste and maintenance while lowering the risk of carbon monoxide formation. Hard, irregularly shaped granules have been processed to minimize dust formation from friction. No KOH—minimum anesthetic agent degredation. CARBOLIME has a moisture content of 12-19% and is manufactured with a hardness and porosity which delivers dependable, efficient CO2 absorption. Contains a precise mixture of calcium hydroxide (Ca(OH)2), water, a small amount of sodium hydroxide (NaOH), and a small amount of ethyl violet, which acts as a color indicator when nearing absorption exhaustion. Color changes from white to violet when it is time to discard and replace the absorbent, ensuring safe, consistent performance and preventing any chance of re-use. Refill Bag available (sold separately). 12 canisters per case.2.5-lb. canistersNote: Fresh Carbolime has a white to off-white color. As CO2 absorption reaches its capacity, the Carbolime granules distinctively change to violet. This violet color intensifies to indicate exhaustion of the soda lime. When the violet color has penetrated through half the depth of the Carbolime absorber, the absorbent capacity of the canister is exhausted and the material should be discarded and replaced. It is essential to empty canisters immediately after exhaustion. If exhausted Carbolime is left to stand, the violet color will begin to revert to white within a few hours. Although Carbolime may appear to return to a fresh state, it cannot be regenerated and should never be re-used. The absorbent should be changed when uncertain of the state of hydration, such as if fresh gas flow has been left on for an extensive or indeterminate amount of time.