After trying to find out if this fan had vents in the top or is sealed, most respondents confirmed sealed top, which we need to prevent debris from entering like what happened to previous builder installed fan.  Motor housing is vented around the side, which gives it a great look and very good design.  First thing noticed after installation was how much more breeze we could feel compared to fan it replaced.  Hunter Quiet as always and higher rotation moves more air.  Will buy again to replace other patio fan soon as it starts to make noise. Love Hunter Fans because you don't hear them.  Hope that always continues.