RAID - Gas Blender
RAID Gas Blender Course
The RAID Oxygen Service & Gas Blending course (also referred to as Gas Blender) is a non-diving specialty program that trains participants in the safe handling, cleaning, and blending of enriched air nitrox (EANx) and trimix breathing gases. It covers oxygen-compatible equipment standards and various blending methods, emphasizing safety protocols for oxygen-rich environments.
This course is suitable for divers seeking independence in gas production, as well as dive center staff or professionals requiring expertise in gas mixing operations.
Benefits of the RAID Gas Blender Course
- Master principles of gas blending for nitrox and trimix mixtures.
- Learn oxygen cleaning techniques and maintenance of compatible equipment.
- Understand partial pressure calculations and blending methods (e.g., continuous flow, partial pressure).
- Manage risks associated with high-pressure oxygen and helium.
- Perform accurate gas analysis using calibrated analyzers.
- Ensure compliance with safety standards and best practices.
- Enhance professional qualifications for dive operations.
Prerequisites
- Minimum age: 18 years.
- Certified as RAID Open Water or equivalent from a recognized agency (some centers note it is open to non-certified divers).
- Comfort with basic mathematics, including percentages and formulas.
- Completion of a medical questionnaire (physician approval required for certain conditions).
- Standard RAID forms, including liability release and safe diving practices agreement, via the RAID User Portal.
- For minors: Not applicable (age 18 minimum).
Note: Some RAID centers may require additional qualifications such as compressor operator or equipment service technician certification for full oxygen service components.
Course Structure
The course combines online theory with mandatory hands-on practical training conducted by a certified RAID Gas Blender Instructor:
1. Academic Development
Completed via RAID’s online FREe-Learning platform. Topics include:
- Gas laws, partial pressures, and blending calculations.
- Oxygen-compatible cleaning standards and procedures.
- Blending techniques for nitrox and trimix.
- Safe handling of oxygen and helium.
- Equipment requirements, analyzers, and risk management. Students access digital manuals, complete quizzes, and pass a final exam at their own pace.
2. Practical Sessions
Supervised hands-on training at the dive center:
- Oxygen cleaning and equipment preparation.
- Multiple blending sessions using professional equipment.
- Gas analysis and verification.
Duration and Depth Limits
- Theory: Self-paced online (typically several hours to days).
- Practical sessions: Typically 1 full day (when theory is completed in advance).
- No diving required; all training is conducted on the surface.
Equipment Provided
The dive center supplies all necessary equipment for practical training, including:
- Professional blending station (compressor, booster, mixing panel).
- Calibrated oxygen and helium analyzers.
- Oxygen-compatible cylinders, whips, and regulators.
- Safety gear (gloves, eye protection). Participants typically need only closed-toe shoes and personal attire.
Certification
Upon successful completion of academics and practical skills, students receive a globally recognized electronic certification (e-card) issued by RAID. The certification is permanent and downloadable from the RAID portal. It qualifies participants as Oxygen Service & Gas Blenders for producing nitrox and trimix mixtures.
Next Steps to Enroll
1. Create a free account on the RAID User Portal: https://user.diveraid.com
2. Purchase the digital Oxygen Service & Gas Blending course materials in the RAID Store and access them via https://diveraid.com/free-learning/
3. Contact the center to book, discuss fees, and schedule your session. The center will unlock training materials, conduct the program, and handle any recognition.
The RAID Oxygen Service & Gas Blending certification provides the knowledge and skills for safe, accurate production of specialized breathing gases, supporting advanced recreational and technical diving activities.
