-Can clean 4 ton van body truck, truck, minibus, luxury car, etc. -No maintenance is necessary because of no brush change is required. -No car cleaner operator is required, Save labor and administration cost. -Solve customer complaint about cleanliness as customer cleans its car by itself. -Economical price without bubble. -Convenient due to simple operation, Reduce failure(disorder) rate. -Even if there is no drying system, however. It is possible to overcome it through manual drying.