AEROSOL-GENERATION APPARATUS FOR DETERMINING WHETHER AEROSOL-GENERATION ARTICLE IS OVER-HUMIDIFIED

According to an embodiment, an aerosol generating device includes: a heater configured to heat an aerosol generating article to generate an aerosol; a battery configured to supply power to the heater; a temperature sensor configured to measure a temperature of the heater; and a controller configured to control power supplied to the heater from the battery to: increase the temperature of the heater to a first temperature; obtain an inclination indicating an amount of change in the temperature of the heater with respect to time during a preset time period from a time when the temperature of the heater is expected to reach the first temperature; and determine whether the aerosol generating article is over-humidified based on the obtained inclination.