Opening and Closing of Air Vent

The audio begins with the distinct sound of an air vent being approached. There's a metal-like echo, unique to the hollow interiors of ventilation systems. Then, there's a clear, crisp sound of the vent cover being opened. The subtle, yet distinct noise of air rushing out is heard, signifying that the vent is now open and functioning. After a while, there's a shift in the audio, transitioning to the process of closing the vent. The metallic echo returns as the vent cover is moved back into place. A soft, dragging noise can be heard as the cover slides over the vent, followed by a final, resonating click. The rushing sound of air gradually decreases, confirming the closure of the vent. The audio concludes with a sense of calm, indicating the end of the process.