The Makita DFJ310ZL ventilation jacket is a battery-operated cooling garment designed for use in demanding work environments. This cotton jacket features an integrated fan system that lowers body temperature to below 35 °C within 10 minutes of activation, providing effective cooling in hot working conditions. Compatible with 12V, 14.4V, and 18V Makita lithium-ion batteries (sold separately), the jacket offers long operating times of up to 33 hours, depending on battery capacity. The practical design includes five pockets, one of which is specifically designed for secure battery storage. Weighing 490 grams without the battery, the jacket maintains a lightweight profile while delivering consistent cooling performance. The turbo function provides enhanced airflow for one minute before automatically switching to standard operation, optimizing battery usage. Made from durable cotton material, this ventilated jacket combines functionality with comfort, making it suitable for various industrial and construction applications where temperature regulation is essential. The design focuses on practical workplace requirements with special attention to user comfort and operational efficiency.