An apparatus for washing hands and/or fingernails includes a brush assembly attached to a water faucet. The brush assembly includes a backplane with two opposed brushes attached to the backplane such that the bristles on each brush face outward from the backplane. A clamping mechanism removable attaches the brush assembly to the faucet. The clamping mechanism is pivotable on the faucet so the user can move the brush assembly into the water stream to use the brushes and out of the water stream for rinsing.