AIR-INK, which captures and sequesters carbon found in air pollution (PM2.5) to produce industrial-grade inks and pigments for high-grade printing materials, was one of eight projects chosen for MIT Solve's Circular Economy Solver class on September 22, 2019. It was also a recipient of the GM Prize on Circular Economy. 

Produced by Media Lab spinoff Graviky Labs, AIR-INK was developed by Fluid Interfaces alum Anirudh Sharma, who co-founded the company after his graduation from MIT.