I recently got one of these white noise machines. They are quite expensive, around $50, but they work very well. The 980 model has two speeds and you can twist the top and sides to change the sound to make it louder or more muffled. Whether you live in a noisy apartment, have a noisy office, can’t sleep at night, or use it for your infants room, it does it’s job well. Some people put them in the baby’s room and have one of those voice monitors so they know when they are awake. I used to just turn my ceiling fan on full blast, although you can’t do that in the winter. The noise it makes isn’t irritating and repetitive, unlike most white noise CDs out there.