S M Sodium Chloride 0.9% SolutionSM Sodium Chloride 0. 9% Solution S+M Sodium Chloride 0. 9% is a sterile isotonic solution for use as an emergency eye or skin wash. The solution comes in a 100 ml bottle with an integrated eye cup which makes it equally suitable for first aid applications at home, when travelling or in the workplace. Purified water based Sodium Chloride 0. 9% Solution Single use preservative free 4 year shelf life Sterile while container is sealed Convenient twist