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The performance of a new detergent‐free dry cleaning machine has been investigated and compared to conventional machines. The new machine includes a highly efficient system for solvent purification, and effectively cleans wool, cotton and synthetic fibers without the need of detergent. Its performance is similar or in some cases better than the conventional machines, which contaminate the clothes with detergent. Since detergent is not needed and solvent is efficiently used in the new machine, environmental impacts and operation costs are reduced, and the negative side effects on the properties of clothes are eliminated.