Remove any fecal contamination of the dust. The dust may be reused until it becomes overly contaminated or appears clumpy. If you have more than one chinchilla, have a separate dust bath for each to prevent spread of diseases. Never wash your chinchilla with water. If he does get wet, roll him up in a towel or use a hair dryer set on low, making sure it is not too hot.
Chinchillas are very active animals, and like lots of exercise.
Ideally the wheel should be 15 inches in diameter. Wheels that have ball bearings are preferred. Some wheels can be attached to the side of the cage. This makes it easier for the chin to easily hop in and out of the wheel. As they grow in size, introduce the wheel so they become used to it while they are young.