Air purifying apparatus and method for controlling same

Disclosed are an air purifying apparatus and a method for controlling the same. Specifically, disclosed are an air purifying apparatus and a method for controlling the same, in which the air purifying apparatus includes: a fan 100 for discharging air; a sensor 200; and a controller 300 that controls a rotation of the fan 100, in which the controller 300 includes: a variation calculation module 310 for calculating a rotation speed of the fan 100, a variation in the rotation speed of the fan 100, and a variation in a concentration of particles measured by the sensor 200, for a preset time interval from a reference time; a standard score calculation module 320 for calculating, by using a preset first method, the calculated rotation speed of the fan 100, the calculated variation in the rotation speed of the fan 100, and the calculated variation in the concentration of particles for the preset time interval from the reference time respectively as standard score values for the preset time interval from the reference time, summing up the standard score values, and repeating the calculating and summing to calculate a plurality of summed standard score values; a learning module 330 for storing, as optimum values of the reference time, the rotation speed of the fan 100, the variation in the rotation speed of the fan 100, and the variation in the concentration of particles, which correspond to a highest value among the plurality of summed standard score values; and an artificial intelligence control module 340 for controlling, at every reference time, the rotation speed of the fan 100 in accordance with the rotation speed of the fan 100 corresponding to the optimum values stored in the learning module 330.