Powder handling produces airborne dust to the surrounding that can poses various hazards to peoples, industrial facilities and environment. This paper describes an experimental set up to examine the airborne dust generated in free falling of powders from a conveyor belt and investigates the influence of particle properties on the drop heights and conveying velocities to the formation of airborne dust. For this purpose, a dust generation measurement device was fabricated to quantify the amount of the airborne dust. It is found that the powder properties, drop height and conveying velocity have strong influence to the amount of airborne dust generated during free falling.