It protects valuable paintings, wallpapers, paintings, furnishings, wooden floorings against fading and to be damaged by the sun. The window film blocks up to 99% of sun’s harmful ultraviolet (UV) rays and heat projection. In summer there is no need to shut blinds to keep the interior cool and comfortable and reduce the energy cost, heat and glare. It comes with limited lifetime guarantee. It adds high performance, security and safety.