Abstract: A handheld cleaner includes a housing that at least partially defines an air pathway and a suction nozzle that defines a nozzle inlet in communication with a suction pathway. The suction pathway is configured to extract at least one of debris or liquid from a surface to the air pathway. An exhaust defines an outlet to the air pathway. A suction source is in fluid communication with the suction nozzle via the suction pathway. The suction source is configured to generate a working air stream. An operation angle sensor is configured to detect an operation angle of the handheld cleaner relative to the surface. A controller is in electrical communication with the suction source and the operation angle sensor via an electrical pathway. The controller is configured to control an amount of suction generated by the suction source based on the detected operation angle.