CO2 technology offers very robust methods for precision cleaning surfaces for high-tech products such as aerospace parts, optical devices, integrated circuits, disk drives, air bags, sensors and medical devices. CO2 precision cleaning is a clean process which does not leave any wastes such as spent-solvents, rinse water, filters, and coolants. It is completely a dry process as well which does not require a separate drying process. As a result, CO2 precision cleaning reduces environmental waste at the source (energy, water, chemical wastes) by modifying the production process.