This duster produces a powerful thrust of air at almost 10 level strong gale (28m/s) for deep cleaning. Suitable from circuit boards to computers parts, electronic instruments, and many more. Its motor allows the maximum rotating speed to reach up to 33000 RPM. Built-in large 2000mAh lithium batteries for long time usage. Structured with an extended full-palm gripping design. Withdrawable nozzle keeping the handhold clear.