2UUL DA97 Cuul Fan Pro Turbo Fan

After a long stretch of hot-air work, a stacked logic board can stay too hot to test for minutes. The 2UUL DA97 Cuul Fan Pro is a cordless turbo fan that pushes a tight jet of air at the hot area so you can move on sooner.

The DA97 uses a high-speed internal turbine rather than an open blade. The listing says this gives more static pressure than a standard desk fan, so air reaches into a board area without scattering loose parts nearby. It charges over USB-C and runs on a built-in rechargeable lithium cell.

Jobs where the DA97 earns its spot

• A board that's still overheating after BGA or jumper work and won't give stable readings.

• Dust spots on a camera module or Face ID array before the display goes back on.

• Flux smoke drifting into your microscope view.

• Fine debris stuck around a charging port.

Desk mode or handheld

The housing is shaped so it won't roll, which lets you set it on an ESD mat and leave it pointed at a board. Pick it up for spot dusting before sealing a phone.

The listing doesn't give battery capacity, runtime or airflow figures, so plan to top it up between long sessions. If you also want suction for glass shards, the DA970 adds a vacuum end.