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Get dependable, high-purity 99.9% helium-3 supply:
Get started by completing the form to connect with one of our helium‑3 experts.
The better question is, why risk interrupting your critical work by trusting your helium-3 supply to anyone but Airgas, an Air Liquide company? Our helium‑3 supply is essential for neutron detection, quantum computing, dilution refrigeration, ultra-low temperature fundamental research, aneutronic fusion and more. Through Airgas, a leading specialty gas supplier in the U.S., you can access a stable supply of purified helium‑3 and customized logistic solutions for timely delivery.
Our helium-3 solution delivers:
Reliable Supply: Our helium-3 isotope is sourced from a trusted North American supplier and rigorously tested
Expertise: Our team of experts is ready to assist you with selecting the right helium purity and quantity
Available: Our extensive and efficient logistics network ensures safe and reliable delivery
Regulatory Compliance: We adhere to all regulatory requirements ensuring responsible distribution and usage of helium-3
Questions? Please check out these FAQs.
These are our standard gas specifications. Additional options are available upon request. Complete the form to start the discussion.
| Component | Description | Content |
| Chemical purity | By volume | ≥ 99.99% |
| 3He Isotopic enrichment | By volume | > 99.9% |
| N2 | Volume fraction | ≤ 100 ppm |
| CO | Volume fraction | ≤ 6 ppm |
| O2 | Volume fraction | ≤ 10 ppm |
| Ar | Volume fraction | ≤ 6 ppm |
| CO2 | Volume fraction | ≤ 6 ppm |
| H2 | Volume fraction | ≤ 6 ppm |
| C2H6 | Volume fraction | ≤ 6 ppm |
| CH4 | Volume fraction | ≤ 6 ppm |
| Cylinder Size | B04 | B1 | B5 |
| Gas content (max) | 40 L | 100 L | 500 L |
| Height | 9.5 inches | 13.2 inches | 20.9 inches |
| Diameter | 2.4 inches | 3.2 inches | 5.5 inches |
| Cylinder material | Aluminum | Aluminum | Aluminum |
| Valve material | Brass | Brass | Brass |
| Valve type | CGA580 | CGA580 | CGA580 |
| Water volume | 0.4 L | 1 L | 5 L |
| Certification | TPED + US DOT | TPED + US DOT | TPED + US DOT |
| Recommended regulator | Model 14B Part #Y12114B580-AL |
Model 14B Part #Y12114B580-AL |
Model 14B Part #Y12114B580-AL |
Helium-3 is critical for cutting-edge R&D and technical work strategic to national interests. Airgas can provide a quick response and reliable supply.
Tony Reccek, Vice President of Specialty Gases — Product & Commercial Development
This helium isotope is a stable, inert, nontoxic and nonflammable gas that has a wide range of applications, including:
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Download our three-part eBook series to get basic safety information for compressed gas types, plus usage, storage and handling.
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