Biomarine 240R Reduced Mass Co2 Scrubber. Plug and play Co2 scrubbers. The enhanced safety solid core carbon dioxide scrubber uses Orbsorb™ Technology. The benefits include the following. Eliminates user filling and protects against lethal filling errors, eliminates user handling of caustic chemicals and exposure to caustic dust. Provides consistent fill resulting in consistent breathing resistance. Non-dusting, non channeling, non settling. Eliminates all generated free water. Has a three year shelf life in factory packaging and 1 year shelf life when PRE-PACKED into the BioPak.