The electronic device includes at least one sensor configured to detect air flow in from outside of the electronic device, and a plurality of openings formed in the electronic device. Further, the electronic device includes a duct formed between the at least one sensor and at least one of the plurality of openings. A method for operating an electronic device having at least one sensor configured to detect air flow in from outside includes detecting a motion of the electronic device by using a motion sensor, recognizing a pattern of the detected motion, and activating a foreign matter removing unit when the recognized pattern corresponds to a predefined first motion pattern.