Air fryers became a common sight in home kitchens as a quicker way to cook crisp food with hot circulating air, and their distinctive fan hum soon became a familiar everyday sound. Online, short clips of that hum and finishing beep are widely shared as sound effects for cooking content, reaction videos and comedy edits. Because listeners recognise it instantly, it works as a shortcut for a kitchen scene without showing the appliance itself, which keeps it useful for recipe creators, meme makers and anyone adding a touch of domestic realism.