1. It can blow away harmful soldering fumes. 2. One button starts, two wind speeds. 3. Precool with low-speed wind to prevent chip misalignment. 4. Double-sided metal feet to prevent the fan from stick close to the desktop and cause the fan to overheat and be damaged. 5. Fast cooling with high-speed wind takes only 10 sec. 6. 5V Type-C input. 7. Aluminum alloy frame. 8. Easy to clean.