Yeah, it's just coming out the bottom. I did it this way to make it as invisible as possible. Looking at it in person, there's no way to tell its under there. Even having it set up this way, it's clears the moisture off the glass much quicker than when it's off. So it is doing its job to a point. I just wanted some airflow while keeping it invisible. If I decide I want more, there's room up top still