Screen doors are designed to allow fresh air to flow into a home while keeping insects and debris out. They are typically made of a frame that holds a mesh screen, which can be made from materials like fiberglass or aluminum. Screen doors can be installed on exterior doors, providing ventilation without compromising security. These doors come in various styles, including sliding, hinged, and retractable options. Screen doors can enhance the comfort of a living space by reducing the need for air conditioning during pleasant weather. They are often used in conjunction with patio doors or French doors to create an open and airy environment.