SteriPEN’s Ultraviolet (UV-C) light rays safely sterilize clear water by destroying viruses, bacteria and protozoa, including Giardia and Cryptosporidium. If clear water is not available, no worries—the Hydro Photon Pre-Filter clears particulates and debris from water. Purifies 16 fl. oz. of water (cold or warm) in less than a minute, or 32 fl. oz. in a minute and a half. SteriPEN™ turns itself off once ultraviolet treatment is complete; can be used up to 5,000 times. Includes water bottle.

Generic Sport Berkey® Portable Water Purifier bottle is the ideal personal protection traveling companion - featuring the IONIC ADSORPTION MICRO FILTRATION SYSTEM. The bottle's filter is designed to remove and/or dramatically reduce a vast array of health-threatening contaminants from questionable sources of water, including remote lakes and streams, stagnant ponds and water supplies in foreign countries where regulations may be sub-standard at best. 22 oz. bottle.

Sawyer’s Biological Filtration system removes 7 log (99.99999%) of all bacteria like salmonella, cholera, and E. coli. And 6 log (99.9999%) of all Protozoa such as Giardia and Cryptosporidium. You will find these removal rates to equal or exceed competitive options. EPA guidelines allow ten times more Protozoa left in the water than Sawyer® allows.

Sawyer’s Viral Purification offers the same level of protection against bacteria and protozoa as the Sawyer® Water Filter, and yet it is the first and thus far only portable filtration device to physically removes viruses. Which it does at a >5.5 log (99.9997%) rate exceeding EPA and NSF recommendations. EPA guidelines allow ten times more Protozoa left in the water than Sawyer® allows.

The convenient drinking bottle with a water filter. The Katadyn Bottle is a practical drinking bottle with an integrated water filter. Prepare clean drinking water anytime and everywhere: Just fill the bottle and drink – without pumping. Perfect for smaller amounts (e.g. for hiking, travelling or sports). The 3-phase water filter eliminates bacteria, protozoa, viruses and improves taste. Weight: 8 oz., dimensions: 3.5 x 3.5 x 12 inches, 1 Liter.

The convenient drinking bottle with a water purifier. The Katadyn Bottle is a practical drinking bottle with an integrated water purifier. Prepare clean drinking water anytime and everywhere: Just fill the bottle and drink – without pumping. Perfect for smaller amounts (e.g. for hiking, travelling or sports). The 3-phase water filter eliminates bacteria, protozoa, viruses and improves taste. Weight: 8 oz., dimensions: 3.5 x 3.5 x 12 inches, 1 Liter. The only EPA-registered Purifier.