Heat Insulating by Attaching to the Window GlassWindow Glass Insulation Sheet (Heat-Generating Type)

Insulates, retains warmth, and prevents condensation

Just apply these sheets to your windows, and the special heat-generating film will absorb daytime sunlight and convert it into heat. They block the chilly zones that develop around windows, and offer the triple benefits of insulating, retaining warmth, and preventing condensation, which helps improve heating performance. They are applied using water, so they stick firmly but come off cleanly.