Japan's consumer goods market has been hit by a surge in demand for handy fans costing between 10,000 and 20,000 yen (approximately $90-$180). Becoming increasingly popular during the sweltering summer season, these portable cooling devices are selling out rapidly across the country. The craze appears to be fueled by a combination of clever marketing, innovative designs, and the year's particularly intense heatwaves.

In Japan, where summers can get extremely hot and humid, portable cooling devices like handy fans are a staple gadget. The public, particularly in densely populated urban areas, sees these devices as a handy solution to keep cool while on the move. The fact that these devices fall within a reasonable price range also appeals to the market's value for practical and economical products.

In the US and EU, where central air conditioning is more prevalent, the need for personal portable fans is not as pressing as in Japan. However, the concept of personal cooling devices is gaining popularity, especially in locations experiencing high summer temperatures and among individuals concerned about reducing energy use from larger appliances.