Whether it's stricter cleanliness specifications for high-tech components or pre-assembled components, for example with electronic attachments, in many high-purity applications in the cleanroom, the increased cleanliness requirements can no longer be met with previously used cleaning processes. In these cases, the efficient quattroClean snow blasting technology enables dry cleaning as needed with climate-neutral carbon dioxide. Through the interaction of the four mechanisms of action (thermal, mechanical, solvent and sublimation effect) of the process, particulate contamination down to the submicrometre range as well as filmic contamination are removed reliably and reproducibly. Complete process monitoring and control ensures that each part is cleaned with the validated process parameters. The design of the cleaning systems is adapted to the respective cleanroom class.