Dry ice blasting for electric motor repair.

Dry ice blasting (CO2) for electric motor repair shops is preferred due to strict California environmental regulations concerning industrial hazardous waste disposal. Below is a case study for using dry ice blasting (CO2) for an electric motor rebuilder, compared to conventional methods such as sand blasting.

via bin95.com

No need to dispose of the used media, no grit caught in the works, no dust problems, and much lower media costs in the first place. Awesome to see people using their noggins.