INTERSORB 812 NI DIVE GRADE ABSORBENT (SORB)

Intersorb 812 NI is a premium, non-indicating carbon dioxide (CO₂) absorbent specifically engineered for use in diving rebreathers and other life-support breathing apparatus. Manufactured to the highest quality standards by Inter-surgical, it delivers reliable CO₂ removal, helping ensure diver safety and optimal breathing performance in demanding underwater environments.

Formulated from a carefully controlled blend of calcium hydroxide with sodium hydroxide and minimal potassium hydroxide, Intersorb 812 NI offers efficient CO₂ absorption with low dust formation and excellent packing characteristics. Its uniform extruded pellet shape promotes consistent gas flow while reducing channeling, maximizing scrubber duration and performance.

The “NI” (Non-Indicating) formulation is free from color-change dyes, making it particularly suitable for diving applications where chemical stability, reduced degradation, and avoidance of dye-related by-products are essential. It is widely trusted by technical and professional divers using closed-circuit rebreathers (CCR) and semi-closed systems.

Note: Intersorb 812 has been tested to NATO test standard STANAG No 1411.

• High CO₂ absorption capacity for extended dive times
• Low dust formulation for cleaner handling and reduced inhalation risk
• Non-indicating (NI) – no dyes, improved chemical stability
• Consistent pellet size for optimal airflow and scrubber efficiency
• Suitable for CCR and SCR diving systems
• Manufactured under strict medical-grade quality controls

• Closed-circuit rebreathers (CCR)
• Semi-closed rebreathers (SCR)
• Hyperbaric and life-support breathing systems

Intersorb 812 NI is a trusted choice for divers who demand dependable CO₂ scrubbing performance without compromise, supporting safer and more efficient underwater exploration.

For details of Mares Horizon SCR training options we offer CLICK HERE