I am a mental health therapist and protecting my client’s privacy is extremely important to me. Sometimes it’s easy to hear other clients in the room next to us and I don’t want my clients worrying whether others are listening to their conversations. I needed a white noise machine to help protect confidentiality. I love this one because it provides lots of different sound options besides the “white noise” (the falling rain is my favorite) and it can be programmed to shut off automatically. Now my clients have one less thing to worry about. When I received this one I liked it so much I bought another for my home to help me fall asleep.