Summary This prevention fact sheet is intended for occupational health and safety practitioners in the motor vehicle garage sector and in other workplaces that do mechanical maintenance and use biological degreasing stations. Biological degreasing stations — or bioremediating parts washers — can be used in place of traditional solvent-based degreasing stations. They help reduce occupational and environmental exposure to toxic or flammable substances. However, certain precautions should be followed to ensure that they are used safely.