Very useful, mask any noise easily. This was exactly what we were looking for! Had one that was very old, same style and lasted for years after we purchased it used. Don't get this if you are looking for surf, rain, babbling brook or other simulated sound. This is strictly white noise and works like a charm to block out street noise, dogs barking, etc.

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Your question may be answered by sellers, manufacturers, or customers who purchased this item, who are all part of the Amazon community. Please make sure that you are posting in the form of a question. Please enter a question. The steady relaxing sound of a fan or white, pink or brown noise can help you get to sleep more quickly, and stay asleep longer by helping you tune out the environmental noises that might otherwise wake you at night. Using LectroFan in your office or study area can help you focus, so you can get to work and get things done. It's also a simple solution for improving privacy and helping make sure that your conversations don't distract others. Lots of our customers report that they use LectroFan in their baby or toddler's room to block distracting noises and create a peaceful environment. Better sleep for your little ones can mean better sleep for you, and a happier family.
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Steady, low sounds like the whir of a fan or air conditioner are soothing and can help mute distracting or sudden noises. This explains why some people sleep with a bedside fan running, every night, no matter what the temperature. If you do not have access to a fan in your room, try our virtual fan: it will sound even better than the real thing, since the sound frequencies can be shaped to your taste! There are plenty of other noises that will help you if you have a hard time falling asleep at night. Make sure to give our Rain Noise a chance too.