A device for preventing aspirated substance from going inside lungs of a patient and enabling speaking. The device comprises an outer tube, an inner tube, an inner tube opening in the inner tube to allow air to travel from the inner tube to the outer tube, an outer tube opening in the outer tube to allow air to escape out of the device, a valve disposed on the outer tube opening, which allows the air to escape out of the device to the trachea of the patient while exhaling, such that the valve closes by gravity and prevents any material to go inside the device from the outer tube opening and a inflatable cuff disposed around the inner end of the outer tube.
