Abstract: Apparatus for suspending full blood packs to assist filtration or leucodepletion is disclosed. In one embodiment (FIG. 4) it takes the form of a trolley or cart (40) having a rectangular rack (44) fitted with hooks (46) for suspending blood packs (not shown), and a tray-like platform (48) adapted to receive and support the receiving bags of the packs. Actuator means in the form of an air-ram (with piston 62) is employed to raise and lower the rack (44) and actuator means in the form of a pistonless air-ram (79) is used to independently raise and lower the platform (48). The actuator means are powered by a gas reservoir in a central casing (80) and suitable controls. In use, the platform (48) is raised to a convenient height for an operator to load blood-receiving bags thereon and the rack (44) is lowered to a convenient height for the operator to hook the full blood bags onto the hooks (46).