SteriPEN Freedom Water Purifier Review

SteriPEN Freedom4   How it works: Stir the pen in 1 litre of water for 90 seconds.

The Freedom is the smallest and most lightweight model of the SteriPEN series (For those not familiar with SteriPENs – they are compact handheld UV water purifiers designed for taking into outdoors).


  • Effective against bacteria, viruses and protozoa
  • Very small and lightweight (making it ideal for hikers, travellers, campers or anyone that wants to travel light)
  • Smallest and lightest of the SteriPEN series
  • Requires almost no maintenance and it easy to use
  • Takes only 90 seconds to purify 1 litre of water (faster than some methods)
  • Does not add funny odors or taste to water
  • Can save you from lugging around litres of water from the beginning of your trip/hike
  • If travelling in countries where it is recommended you buy bottled water, save money with the Freedom
  • Doubles as an emergency flashlight/torch

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  • Does not filter water, may require the use of a coffee filter or cloth to remove debris from water (may not be a problem, depending on your water source)
  • Does not purify water well in the presence of sediment (it is not designed to). Again may not be a problem, depending on your water source/where you are travelling.
  • Takes 90 seconds to purify 1 litre of water (slower than some methods)
  • Will not remove any funny taste or odor from water
  • Due to the size of this SteriPEN you will need to carry a water container that is large enough for you to stick the pen in to (and to undertake a little stirring).


  • Destroys more than 99.9 percent of harmful bacteria, viruses and protozoa
  • Weighs: 74 grams (2.6 ounces)
  • Measures: 13cm in length (5.1 inches)
  • Effective for up to 8,000 treatments
  • Minimum Bottle Diameter: 30mm (1.2 inches)


Tips On How To Use

  • You should consider taking some water-purification tablets as a backup purification option, in case this device fails. The tablets are very small, lightweight and cheap – so should not hinder your travels.
  • If you are taking this device into the wilderness for an extended period, you should take along an extra pair of batteries
  • PLEASE NOTE: This device does not filter chemicals, salt, heavy metals.

Product In Use (Photos)

SteriPEN Freedom5

SteriPEN Freedom SteriPEN Freedom2

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1 Response

  1. March 1, 2015

    […] SteriPEN Freedom Water Purifer Review […]

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