Insect screen (mosquito) is a net that can be installed in a window or door opening to prevent various insects and dirt from entering the room. The insect screen does not hinder the operation of external and internal roller blinds, and additionally does not reduce the amount of sunlight that enters the room. The use of aluminium frames in insect screens greatly improves their durability and resistance to various weather conditions. The possibility to choose the type and design of the insect screen to fit the desired purpose and window opening type makes it possible to select the right product. The additional possibility to choose the colour of the insect screen makes it easy to match the product to the facade of the building.