A micromist sauna device (10) comprises: a circulating air supply device (11) for circulating indoor air, a heating device (12) for heating air, and a humidifier (20) arranged at the downstream side of the heating device (12) and used for humidifying air. The lower part of the humidifier (20) is provided with a water storage portion (21) for storing water, and the upper part is provided with a humidification portion (22) for sucking up the water in the water storage portion (21) and spraying mist； and an air inlet device (60) for guiding air to the humidifier (20) is arranged between the heating device (12) and the humidifier (20), thereby preventing a decrease in the humidification capacity.
