Provided are an air blower and an air blowing system that reduce an area in which a person cannot be recognized within a space in which an air blower is installed and thereby make it possible to achieve air blower control in which people are taken into account in a wider range within the space. To this end, the air blower is provided with: a first sensor for detecting the position of a person within a first human detection range; a reception means for receiving the detection result of a second sensor, said detection result being transmitted from the transmission means of a sensor-equipped device comprising a second sensor for detecting the position of a person within a second human detection range and a transmission means for transmitting the detection result of the second sensor; and a control means for carrying out blowing control so that exhaust is oriented toward outside the first human detection range when the first sensor does not detect people within the first human detection range and the second sensor detects a person within the second human detection range.