RepAir – a technological leap in carbon removal

RepAir’s pioneering carbon removal solution captures more CO2 with less – less energy, less downtime, and less waste. Exceptionally affordable, uniquely scalable.

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Clean technology, unmatched efficiency

Our streamlined process uses 70% less energy than traditional direct air capture methods, consuming just 600 kWh per ton of CO2 removed. Powered exclusively by renewable energy, it’s clean, elegant and affordable at scale.

No heat, no boundaries

Unlike other carbon removal processes, ours requires no heat. This keeps operating costs low and makes global deployment viable. Our flexible solution is easily deployed at any storage or utilization facility, anywhere in the world.

Continuous removal, less downtime

Our carbon removal solution is continuous, maximizing productivity and minimizing downtime. Especially when compared with batch separation or fixation processes. And no energy is ever wasted. Powering up or down is as simple as flipping a switch.

Sustainable carbon removal at the gigaton scale

RepAir’s next-generation solution is the sustainable, scalable and practical approach to achieving gigaton CO2 yields.


Our technology is the complete ultra-low-cost solution. It’s both inexpensive to manufacture, and the continuous removal process is exceedingly energy efficient to run.


Our sole requirement is a renewable energy source. Additional heating infrastructure isn’t necessary, so our solution can be deployed at any partner site, in any environment.


Our net-negative solution has a carbon footprint below 5%, uses no precious metals, and is built with abundant and recycled materials.

The science behind our novel electrochemical approach

Inspired by fuel cell principles, our patented technology comprises two identical electrodes – cathode and anode – separated by a selective membrane. Within this system, our four-step process creates a continuous carbon removal loop.

Step 1: Air in

Atmospheric air is drawn into the cathode, wherein the applied electrical current generates hydroxides that bind CO2 molecules as carbonate and bicarbonate ions. 

Step 2: CO2 out

Only these ions cross the selective membrane into the anode, wherein the binding process is undone, the hydroxides are consumed, and pure CO2 gas is drawn out. 

Step 3: Reverse and repeat

The electrode polarities and inlet airflow are swapped every few hours to enable continuous direct air removal. 

Step 4: Stack to scale

These cells are then stacked like building blocks, multiplying the solution’s carbon removal capacity while minimizing its physical footprint.

Join our carbon removal ecosystem

We’re always open to expanding our ecosystem of innovative partners as we chart our path to the sustainable gigaton. Whether you’re an investor, material supplier or storage and utilization provider, get in touch to discuss potential partnership opportunities.

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