3M Energy-Saving Film for Windows That Reflects Sunlight

By sticking a film on a flat surface such as transparent glass or frosted glass, it reflects the sun's rays in the summer to suppress the temperature rise, and in the winter it improves the efficiency of heating and saves energy.
Since it is a suction type, it can be easily reattached, and even one person can easily work.
It is easier to apply by letting water and air escape from the microholes in the film.
For energy saving measures in summer and winter
* Cannot be used for wire-reinforced glass, wire-reinforced glass, heat-reflecting or heat-absorbing glass, double or double glazing, laminated glass, special glass, and automobile glass.