Eye Wash, Sterile – 4 litre (1.1 gallon U.S.). Ready-to-use buffered, isotonic solution for eye irrigation. Cleanses the eye to help relieve irritation, discomfort, burning, stinging, smarting or itching by removing loose, foreign material, air pollutants (smog or pollen) or chlorinated water. Contains a buffering solution to help neutralize eyes following exposure to acid or alkaline substances. Contains 2.5% boric acid (weight by volume). Sold as Each.