The frame insect screen is mounted in a simple way to the window frame using non-invasive rotating handles. The mosquito net frame on its outer side has a specially profiled fin that additionally seals the system, making it difficult for insects to penetrate into the room. The frame insect screen is ideal for windows that are opened only to provide air circulation. Mounted at the beginning of spring, they will perfectly fulfill their role until late autumn. After this period, the mosquito net should be removed, maintained and stored until the next season. The big advantage of a mosquito net is the ability to quickly remove and attach the mosquito net with rotary handles.