The Palram - Canopia Side Louver Window is designed to improve air circulation and help control the temperature in all Palram - Canopia Mythos, Hybrid, Essence, Nature Series, Americana, Balance and Glory greenhouses. The shutters are controlled manually for variable airflow to help aid in cooling on warmer days. When paired with the roof vent, the louver window can provide improved air circulation. Additionally, the Palram - Canopia Side Louver Shutters can be fitted with the Automatic Louver Window Opener to provide the ideal airflow into the greenhouse.