I live above a noisy nyc bar patio and was looking for a way to keep the window to my bedroom mostly shut while still getting some fresh air. This fan is really nice for that. Only downsides are I couldn't really get the foam blocks to shut out the sides next to the fan, they were either too big or too small to combine to fill the space I need. Also I wish the fan went up a setting higher, it's not the most powerful. Nice little fan with some neat features though.