Retaining the advantages of other SteriPEN models, the SteriPEN Traveller Mini water purifier is the smallest, lightest and easiest to carry.  Using ultra violet light to effectively destroy the DNA of microorganisms, it is efficient, reliable, cost-effective and a powerful, user-friendly alternative to pumps, chemicals, and filters.
The SteriPEN Traveller Mini water purifier features:
• The SteriPEN purifiers are the only patented, hand held water purifiers that use ultraviolet light to destroy waterborne microbes, though UV light has been used for over 100 years in large-scale systems including hospitals, city water systems and bottling plants.
• It destroys in excess of 99.9999% of bacteria, 99.99% of viruses and 99.9% protozoa, quickly and effectively, including: giardia and cryptosporidium; pathogens that cause diarrhoea, dysentery, hepatitis, polio and Legionnaire’s Disease; household germs such as bird flu, E. coli, and salmonella; staph and strep; and natural-disaster risks like botulism, cholera, smallpox, and typhoid.
• It takes two CR 123 disposables that will purify up to 100 half-litre servings of water.
• It takes only 48 seconds to purify 500ml - up to 160 times faster than chemicals - and UV purification is also more effective in cooler temperatures than the chemical alternatives.
• There is no pumping, no timekeeping, no test strips, no clogging, no lubricating, no cleaning or replacement of filters and the SteriPEN’s UV lamp will last for a massive 3,000 treatments. 

• Using UV purification is safe for everyone and does not add an unpleasant taste to water like iodine tablets or chemical purification can.
• It is easy to use - it works automatically - you switch the unit on and it begins emitting UV light immediately and shuts off when it has finished the purification.
• The sleek Traveller Mini is ideal for foreign travellers visiting countries with at-risk water, as well as for hikers and outdoorspeople generally, because it is so light (only 105 grams), compact (only 15.5cm long) and easy to fit neatly into your pocket, purse, briefcase, luggage or pack.
• You can use the SteriPEN in sports or baby bottles, a glass in your hotel room or restaurant, or commercial water bottles.
• So make sure to pack SteriPEN Traveler Mini to keep you and your family healthy while away from home and enjoy your travels without the chance of unsafe water spoiling your adventures.

After years of research into how to produce a hand-held UV water purifier, Miles Maldon, a dedicated outdoorsman, founded the Hydro-Photon company that makes SteriPENs and Time magazine has named the SteriPen as one of the best inventions of the year for its speed, effectiveness, and portability for water purification.