A vehicle (12) includes a blowing machine (30) that is disposed on the vehicle (12), a duct (50) having a blow-out port that faces an outer plate, which constitutes a vehicle body surface of the vehicle (12), from a vehicle inside, and an ionizer (40) configured to supply oxide ions into the duct (50). The duct (50) is configured to guide air, which is blown from the blowing machine (30), to the blow-out port.
