Window film, when applied to windows, reduces heat transfer by lowering the thermal conductivity of the glass. It helps to block heat from flowing from the warmer side to the cooler side, providing insulation in the winter and heat reduction in the summer. Additionally, after installation, window film can block over 95% of ultraviolet (UV) rays, which helps protect the health of occupants' skin, prevents fading of interior furnishings and floors due to sun exposure,