It has the same respiration function as living things, and it is used to eliminate people's discomfort in the room. After applying German patents and making slight improvements, Japan's Yoshida Industrial Company has developed a breathing window that can eliminate discomfort, named IFJ window. It has been measured that the temperature difference in a room equipped with breathing glass is only about 0.5 degrees Celsius, which is particularly suitable for people's senses. Not only that, breathing glass also has a high energy-saving effect. Conventionally, the air conditioning load coefficient is 80. After installing breathing windows, it drops to 51.9 (the smaller the coefficient, the better the energy saving). According to reports, this kind of breathing window frame is made of a special aluminum material, with thermal insulation material on the outside, and the window glass uses double-layer glass that reflects infrared rays, leaving a 12 mm gap between the double-layer glass and filling it with inert gas. Argon, the glass near the inside of the room is coated with a metallic film.