Pneumatic conveying by vacuum is a popular method of transfer for the loading of blenders in the pharmaceutical and nutraceutical industries. One of the distinct advantages of vacuum systems is the inward suction created by the vacuum source and resulting reduction of any outward leakage of dust which may occur in pressure conveying systems. Vacuum loading of blenders typically falls into two categories: indirect loading via pneumatic sequencing systems or direct loading, where the blender becomes the primary vacuum receiver.