Description of MSR MIOX® Purifier The MIOX® Purifier represents a revolution in water treatment. It’s ultralight, compact, and easy to use—with no pumping, maintenance, or iodine required. Features: No pumping required Just add water, shake, and press a button. Purifies water without iodine No health risk or unpleasant iodine taste. Great for large volumes of water Perfect for groups or extended trips. Ultralight and compact Fits in your pocket to go anywhere. Reliable purification Inactivates all viruses, bacteria, Giardia, and Cryptosporidium. Dwell times Viruses, bacteria: 15 min. Giardia: 30 min. Cryptosporidium: 4 hrs. Weight - Pen: 3.5 oz./99 g, Kit: 8 oz./227 g Kit includes - MIOX® Purifier, salt, batteries, safety-indicator strips, instruction booklet, quick-reference card, and storage sack.