The manual Karcher PC 100 M2 Bio parts cleaner combines effective oil and grease removal with a high standard of environmental protection. Instead of using solvents, tools, motor components and other oily and greasy parts are cleaned with a water-based detergent. When the washstand, which is designed for two people and a load of 100 kg, is filled for the first time, natural microorganisms are washed into the detergent through a filter mat. The microbes decompose the organic materials such as oils, lubricants and other greases that have been cleaned, thereby recycling the liquid in a natural and environmentally-friendly way. There is no need for regular water changes and the cost-intensive disposal of this waste water, while the cleaning performance stays at a consistently high level. Coarse dirt particles are removed by a metal sieve as a prefilter, fine particles up to 50 µm are reliably retained by the filter mat. This innovative and biological type of parts cleaning is particularly useful in the automotive and processing industry, as well as for workshops (cars, utility vehicles, local transport and rail services, military, etc.).