A white noise machine is a device that produces a consistent sound, often resembling the noise of a fan or static. This sound helps to mask other noises in the environment, making it easier for people to sleep, concentrate, or relax. White noise machines are commonly used in homes, offices, and even hospitals to create a soothing auditory backdrop. These machines can be particularly beneficial for individuals who experience difficulty falling asleep due to disruptive sounds, such as traffic or loud neighbors. Many models offer various sound options, including nature sounds or ambient music, allowing users to choose what works best for their needs.