A hand-washing system for washing fingernail beds and cuticular regions ofhuman fingers andthumbs (collectively "digits"). The hand-washing system includes a workenclosure for containingones of the digits and a high-velocity, high-flow water spray during a washingoperation. The workenclosure defines an interior space, part of which defines an energy-dissipation region that, duringuse, provides a water reservoir for dissipating energy in the high-velocity,high flow water spray.The work enclosure includes a high-energy spray nozzle and a digit portalsized to receive the fourfingers of one hand simultaneously in closed-fingered, upwardly-curledconfiguration. A mixingvalve may be provided to allow a user to adjust the temperature of the waterduring washing. Aquick-disconnect fluid-coupling assembly may also be provided and be used toquickly selectbetween work enclosures of differing size.
