Pristine® Tabs 8.5 mg are an excellent, low-cost way to always be prepared!  One (1) tab treats one (1) litre of water. Individually wrapped tablets can be added to any suspect lake or river water and will protect you from bacteria, viruses, and Giardia. They are perfect for drinking water, making ice cubes, brushing teeth, washing uncut fruits and vegetables, plus food and beverage preparation. Pristine® Tabs come in a resealable, water-proof pouch making them compact and ideal for your backpacking trips or your emergency preparedness kit!  Pristine® Tabs are safe for children and pregnant women, as well as, certified to NSF/ANSI/CAN 60.