Abstract: Evaporative coolers are disclosed. The evaporative cooler includes a cooler housing, a pump, a float, and a magnetic switch. The cooler housing defines a receptacle for receiving water. The pump is disposed at least partially within the receptacle defined by the cooler housing. The pump is configured to pump water received in the receptacle defined by the cooler housing. The float is disposed within the cooler housing and positioned to float on the water received in the receptacle defined by the cooler housing. The float includes a magnet. The magnetic switch is mounted on the cooler housing and configured for activation when the magnet is proximal to the magnetic switch. The magnetic switch is electrically coupled to the pump such that the pump is deactivated when the magnetic switch is activated by the magnet.

Abstract: Evaporative coolers are disclosed. An evaporative cooler includes a cooler housing, a centrifugal fan, and a motor. The cooler housing defines an interior region, a single air inlet, and an air outlet. The single air inlet is positioned to permit air flow into the interior region generally along an inlet axis. The air outlet is positioned to permit air flow from the interior region generally along an outlet axis. The inlet axis and outlet axis are angled with respect to one another. The centrifugal fan is mounted within the interior region of the cooler housing. The centrifugal fan is oriented to rotate about a vertical axis that is substantially orthogonal to the inlet and outlet axes. The motor is mounted within the interior region of the cooler housing and is coupled to the centrifugal fan. The motor is configured to rotate the centrifugal fan about the vertical axis.