11.  After filtering, the water is purified.

12.  Cotton swabs and purified water.

13.  Even the most remote mountain streams can be rife with bacteria, so it is a good idea to purify water you draw from the woods.

14.  I brought a small dropper bottle of iodine to purify water and had only mild stomach problems.

15.  In one scene, the fleeing unicorn plunges his horn into a stream, miraculously purifying its water for the thirsty woodland creatures gathered around him.

16.  In the final two hours, he turns to new ways to recycle automobiles, treat wastes, purify water, use alternative energy sources and so forth.

17.  Instead of tapping natural springs, Coke will turn on the tap and use reverse osmosis to filter and purify the water before adding minerals for taste.

18.  IV. Thou shalt purify the water that thou drinkest including thy cubes of ice.

19.  Purify water from lakes, rain, rivers, springs and streams before taking a big gulp, using it for cooking or for hygiene.

20.  Sea cucumbers act as filters, purifying sea water.