Headquartered in Blue Hill, Maine, USA, Hydro-Photon, Inc. is maker of SteriPEN, the world leader in handheld, ultraviolet light water purifiers. The SteriPEN brand sets the standard for fast, light, easy and effective water purification. The SteriPEN product line includes Freedom, Classic 3, Ultra, Adventurer Opti, Traveler, Emergency and Sidewinder.  Hydro-Photon is privately held and information about the company, SteriPEN products, dealers, and lab test results can be found at www.steripen.com.