Thank you for viewing our products. Immediate purchase is welcome. Thank you. [The most powerful blast, 36V ultra-high output & experience -18°C] If you're seeking coolness, we "recommend" the latest Bulonchi fan and battery set device. The latest 2025 battery has been further upgraded, evolving into a high-spec model with a maximum output of 36V. The maximum airflow is an industry-leading 210 liters/second, and this maximum airflow lasts for 4 hours. Some devices have a short operating time at maximum output, so this figure is exceptional. It can operate continuously for about 12 hours in 20V airflow mode. It can operate continuously all day long, achieving sufficient airflow even at low output, resulting in overall high performance. It has high compatibility with 90mm fan holes and can be used with commercially available air-conditioned workwear, air-conditioned pants, air-conditioned bags, etc. [Essential for Heatstroke Prevention] Instantly blow away the stuffiness and get an overwhelming cooling sensation! 360° all-around powerful airflow, it only takes 3 seconds to instantly lower your body temperature by -18°C, achieving instant cooling. A heatstroke prevention product for workers in situations where air conditioning cannot be used. It quickly cools down in high-temperature environments such as factories, forestry, agriculture, construction work, and welding work. By wearing the Bulonchi fan and battery set, you can "relax" and work even in high-temperature environments, improving efficiency. [Battery & Fan with Short Charging Time] "I can't wait 68 hours! I want a battery that can charge quickly!" This device is recommended for you! Equipped with an LED liquid crystal display, it displays the output voltage (airflow mode) and remaining battery level in real-time and accurately. Furthermore, it comes with a dedicated rapid charger, and charging is completed in about 4 hours. The dedicated charger is a genuine product with PSE certification, so you can use it with confidence. [Can be used in summer and winter] "It's a waste if I can only use it in the summer even though it costs over 10,000 yen! I want a battery that can also be used for winter heater wear!" This device is recommended for you! Comes with a PSE-certified 30000mAh battery. It may also be useful as a power source during disasters. It also has a USB port. [The battery & fan with the highest waterproof and dustproof performance] There are some devices with a simple waterproof specification, but this Bulonchi battery is...