The smallest, lightest SteriPEN Adventurer Opti, uses a revolutionary optical eye to sense the water. The patent-pending technology ensures safe use and provides purification in even the coldest of waters.
SteriPEN creates UV light that disrupts the DNA of microbes in seconds. Without functional DNA, microbes can't reproduce or make you sick. Drink purified water to protect yourself from diarrhea, dysentery, influenzas and other waterborne illnesses. Destroy harmful microbes with StrePEN Adventurer Opti.
Single push button; purify water in glass, bottle or other container three easy steps: