CDL active and CDL duo are both variants of chlorine dioxide solutions, but with different application and storage properties. While CDL active is a prefabricated , activated chlorine dioxide solution with a concentration of around 0.3% and is therefore ready for immediate use, CDL duo is a 2-component set . With this set, the user can independently prepare a chlorine dioxide solution, also with a concentration of around 0.3%.
A key advantage of CDL duo is its long shelf life: When inactivated, it can be stored for up to 4 years, which makes it particularly attractive for long-term storage and stockpiling.