A facial mask device 1000 according to the present invention has a mask body 500 worn in close contact with the user's face and a space S is formed between inside of the mask body 500 and the user's face for storing air for the user's respiration. The mask body 500 has an inlet part 530 having an inlet 538 through which the purified air supplied by the purified air supply means is supplied into the space S and an outlet part 360 having an outlet 364 through which the purified air supplied into the space S is discharged.