A powder chamber (10), in particular for powder polishing devices, comprising a casing (12) and two functional sectors (20, 40), whereby the two functional sectors (20, 40) are arranged to be opposite to each other, and whereby at least one functional sector (20, 40) is designed to provide an opening (22, 42) for a working medium such as air or a mixture of powder and air, and whereby the two functional sectors (20, 40) are designed to allow the powder chamber (10) to be locked. The two functional sectors are preferably arranged along an axis (R) and are rotationally symmetric.
