Toilet device and toilet seat device

A toilet seat device mounted on a flush toilet, the flush toilet including a bowl and a rim, the bowl receiving excrement, an upper edge part being formed of the rim, the toilet seat device comprising:

• a toilet seat where a user is seated;
• a sterilizer generating sterilizing water;
• a sprayer spraying a mist of the sterilizing water onto the bowl, the rim, and the toilet seat;
• and
• a controller controlling the sterilizer and the sprayer,
• the controller controlling the sprayer to cause an average wetting amount per unit area of the sterilizing water at the toilet seat and an average wetting amount per unit area of the sterilizing water at an upper surface of the rim each to be smaller than an average wetting amount per unit area of the sterilizing water at the bowl and smaller than an average wetting amount per unit area of the sterilizing water at an inner wall surface of the rim for one time of performing a mist mode to spray the mist of the sterilizing water onto the bowl, the rim, and the toilet seat.