Soda lime is widely used in various medical and industrial applications due to its ability to absorb carbon dioxide and moisture. In medical settings, it is commonly employed in anesthesia machines and closed-circuit breathing systems to remove exhaled CO₂, ensuring patients receive clean, breathable air. It is also used in diving rebreathers to scrub CO₂ from exhaled air, allowing divers to reuse their breathing gas.

In industrial contexts, soda lime is utilized in gas purification processes, particularly in removing CO₂ from air or other gas streams. It is also applied in laboratories for drying gases and controlling atmospheric conditions in controlled environments. Additionally, soda lime finds use in the chemical industry for neutralizing acidic waste streams and in the production of certain chemicals where CO₂ absorption is required. Its versatility and efficiency make it a valuable material in both healthcare and industrial operations.