There are two types of contact saline solutions (I'm not talking about contact cleaning solutions). You either have sterile (preservative free), or the type with preservatives in it. The sterile solutions come in sealed bottles, and are only sterile if kept sealed. That's a terrible solution to use to top off an eye wash station, as it will breed bacteria and fungi. I suppose the type with preservative should be fine, at least through the expiration date on the bottle.I use saline solution....have never changed it other then using it a few times. Just top it off with my contact solution.
Everything food and drug has an expiration date.Believe it or not, the eye wash that is sold at drug stores and big box stores has an expiration date.
Before I retired I co-owned and ran an inspected commercial boat (>6 passengers) and every year we were required to have a USCG inspection. When they got to the first aid kit, the first thing they always looked at was the expiration date on the eye wash.
Ditto. I just buy new bottles for my eyesaline station when they expire. As cheap as the bottles are, I'm not going to risk my eyes with a potentially bacteria-laden refilled bottle.I've never refilled one, I always replace when used up or expired.
