A mist generator (3) provided with an oscillation membrane (12) including a porous atomization portion (11). A liquid supply (29) supplies liquid (L) to the atomization portion (11). An oscillation generator (13; 31) oscillates the oscillation membrane (12) and atomizes the liquid supplied to the atomization portion (11). A liquid film eliminator eliminates a liquid film (LF) from a mist discharge surface (12a) of the oscillation membrane (12) by oscillating the oscillation membrane.