Research, development and construction of fit-for-purpose equipment refers to the need to design and create equipment specifically for DAC applications instead of using general purpose products, as this tends to vastly improve performance. Examples include oxy-fuelled or solar calciners for Technology 1A or robust and efficient heat pumps for Technology 2C. The key guiding principles to keep in mind when designing fit-for-purpose equipment is to aim for equipment whose components can be mass produced. Furthermore, it would be beneficial if equipment could be used across technologies to foster knowledge spillover and learning.