The bottle contains 200 ml of 4.9% sterile phosphate solution, which quickly neutralises even concentrated acid or alkaline substances in case of contact with the eyes. The liquid contains phosphates which are present in the human body. The buffer's hydrogen phosphate component neutralises acids, while the other part of the buffer, dihydrogen phosphate, neutralises alkalis. It comes in an easy-to-use bottle with an ergonomic cap, dust cover and clear instructions for use. This small, easy-to-use bottle can fit in a coat pocket, first aid kit, tool bag or dedicated belt pouch. Rinsing time: approx. 2 minutes.