A:Answer Thank you for your question!
All Haier window AC units have vents on the top as this is needed because of the condenser and the hot air that is created as the unit operates. Without those vents, the unit would overheat and become damaged.
When it comes to cleaning you can use a vacuum to remove the debris from the vents, or maybe consider getting a portable AC unit.
Portable AC units are indoor units and the exhaust hose simply attaches to the window kit.
Here is a video showing installation. https://www.youtube.com/watch?v=SL4Of4IBzOo
Also here are the portable AC units Haier makes depending on how big of a room you ar trying to cool. http://www.haieramerica.com/products/air-conditioners/portable
Thank you,
Haier America