Can SteriPEN be used in cold weather?
Yes. SteriPEN has been successfully used on mountains all over the world — including Kilimanjaro and Everest (please refer to our Testimonials page). If the ambient temperature is below 32°F (0°C) we suggest that you carry the SteriPEN in your pocket to keep it warm, as battery performance may be impacted by very cold temperatures.Yes. SteriPEN has been successfully used on mountains all over the world — including Kilimanjaro and Everest (please refer to our Testimonials page). If the ambient temperature is below 32°F (0°C) we suggest that you carry the SteriPEN in your pocket to keep it warm, as battery performance may be impacted by very cold temperatures.