The Miller CoolBand is an integrated headgear cooling system that optimizes airflow under the hood, making it up to 8 degrees F cooler while welding. Strategically placed air vents help reduce glasses fogging, and constant air movement helps remove stagnant air. This system includes an oversized, conveniently located 'power' button. Lightweight Lithium Polymer rechargeable battery delivers maximum battery life. A removeable air deflector provides air direction adjustability. Compatible with most Miller helmets.