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A dry cleaning machine is somewhat similar to a domestic washing machine, with the exception that it's significantly larger, and that all the dry-cleaning solvent is captured, filtered, and re-used during the cleaning cycle rather than flowing down the drain.

1 History

Early dry cleaners used solvents such as gasoline and kerosene. After World War II, carbon tetrachloride and Trichloroethylene are popular before giving way to Perc.

2 Environment

Perc is toxic and long-term exposure can cause liver and kidney damage. Fortunately, there are healthier alternatives such as:

• wet cleaning with biodegradable soap and water.
• silicon and liquid CO2 solvents.
• alternative hyrdocarbons solvents.

3 External links

• How stuff works article on how dry cleaning works.
• Dry cleaning chemicals that are more environment friendly.

Now, the old machines are illegal because it is harmful to your health. In the old machines, you had to dry clean the clothes, then take them out to be dried. Now you no longer have to take the clothes out of the dry cleaning machine.