Heirloom develops a scalable Direct Air Capture (DAC) technology that accelerates the natural carbon mineralization process. By cycling limestone (calcium carbonate) through a heating and hydration loop, Heirloom's system acts as a sponge, absorbing CO₂ from the atmosphere in days rather than years. The company is positioned to remove 1 billion tons of CO₂ annually by 2035 using modular, low-cost facilities. The platform aligns with global decarbonization mandates, offering scalable infrastructure for net-zero transitions.