Saline solution is a solution of sodium chloride, or salt, in sterile water. Normal saline solution is 0.9% sodium chloride, though this refers to only one possible concentration.
Saline solution for rinsing and storing contact lenses may sometimes contain other chemicals for sterilization, and it is not recommended that contact lens solution be used for nasal irrigation without being certain it is a normal saline solution.
【名士派生活】 (4)