The permanent removal of CO2 from the air has been touted as a potential solution for eliminating emissions companies are otherwise unable to cut.
Customers are offered refunds when they return Ocado bags for recycling, but unclaimed refunds are put towards good causes, such as carbon capture.
Advocates of DAC technology maintain it can play a crucial role in helping to deliver on net zero targets, but critics have warned the fledgling technology remains hugely expensive and question whether it can be scaled up to a level where it can make a significant dent in global emissions.