A louver vent is a type of window or door panel that is designed to allow air to pass through it. It consists of a series of angled slats, typically made of metal, wood, or plastic, that are arranged in a parallel fashion. The angle of the slats is adjustable, allowing for greater or lesser amounts of air to pass through. Louver vents are commonly used in residential and commercial buildings to provide ventilation, allowing fresh air to enter while preventing insects and other pests from entering. They are also used to control light and temperature levels in a room. Louver vents are a great way to improve the energy efficiency of a building, as they can be adjusted to allow the right amount of air to pass through, while still keeping the building insulated.