Drowning out the cacophony of an airport—from screaming jet engines to loud boarding announcements—requires a "layered" approach to sound management. The most effective tool is a pair of Active Noise Cancelling (ANC) headphones, such as the Sony WH-1000XM5 or Bose QuietComfort Ultra, which use microphones to neutralize low-frequency ambient sounds. For sleeping in terminals, many travelers combine ANC earbuds with silicone or foam earplugs for "double protection." Using a white noise app (like Dark Noise or Rain Rain) can also help mask the erratic high-pitched sounds of terminal chatter. If you are working, lo-fi music or binaural beats are excellent for maintaining focus. For those on a budget, even standard "wrap-around" sleep masks with built-in speakers can provide a psychological and physical barrier against the chaotic airport environment.