An insect screen is a mesh barrier designed to keep insects out of buildings while allowing fresh air to flow in. Typically made from materials like fiberglass or aluminum, these screens are installed on windows and doors. They help prevent pests such as mosquitoes, flies, and other insects from entering living spaces. Insect screens come in various styles, including fixed, retractable, and magnetic options. They are an essential feature in many homes, especially in areas prone to insect infestations. Proper installation and maintenance of insect screens can enhance comfort and reduce the need for chemical pest control methods.