Retail price: 3,828 yen Used only once. Automatically and rapidly cools hot lunches! A dedicated lunchbox fan that blows air from directly above. This dedicated fan efficiently cools down your lunch by blowing air over the entire surface. It can cool freshly cooked rice in just about 5 minutes. It's rechargeable, so you can use it anywhere, and it's easy to carry. The air outlet uses an activated carbon filter to absorb dust and odors. When not in use, the arm folds up to a compact size, making it convenient for storage. The arm can be adjusted in two stages to fit the width of your lunchbox. It can accommodate sizes from standard to large.