Patent ID: 7017306

Claim:
A down flow containment assembly comprising: a powder handling booth of sufficient size to admit an operator, said powder handling booth having a rear wall, a floor for permitting the operator to stand thereon, and an upper surface; a barrier means positioned in the powder handling booth and spaced apart from the rear wall to define a processing zone between the barrier means and the rear wall, wherein the barrier means extends from the upper surface at least to the floor of the powder handling booth, the barrier means comprising a front sheet and at least one side sheet, and at least a first part adapted or adaptable to permit the operator in the powder handling booth outside the processing zone to operate inside the processing zone, the first part comprising a flexible material extending at least to the floor and an excess of the flexible material resting directly on the floor, the flexible material comprising an untethered lower edge and a flexible portion in the shape of a glove or capable of being deformed into the shape of a glove; and means for inducing air flow downwardly in the powder handling booth, wherein the rear wall has a lower end and an upper end and is adapted at or near the lower end to transmit externally an air flow and adapted at or near to the upper end to transmit internally the air flow.