The fight against dust shadows on your images does not end at the sensor alone. Throughout the chamber area of any SLR or mirrorless digital camera there are a variety of places for dust to accumulate some of which will eventually end up on the sensor. The 8 mm Sensor Brush® was specifically designed to clean away dust in these hard to reach places. Equipped with SCF technology.
To avoid polluting the sensor, please, don't use the same brush to clean the chamber area and the sensor.