Window screens for apartments can be used to keep insects and other pests out of the home, while still allowing fresh air to circulate inside. They are typically made of a lightweight, durable material such as fiberglass or polyester and are mounted on a frame that fits into the window opening. Some window screens have a removable or retractable design, which allows them to be easily removed or stored when not in use. Other types of window screens may be permanently installed, either on the interior or exterior of the window. If you are interested in purchasing window screens for your apartment, you can check with your landlord or property manager to see if they are available, or you can shop online or at a home improvement store for a variety of options.