ELi5 why do you have to use distilled water in your nose as opposed to regular tap or purified water?

Question

ELi5 why do you have to use distilled water in your nose as opposed to regular tap or purified water?

In: Biology

Answer 1

You could also use water that has been properly boiled. The problem with water sources that aren’t distilled is the source is always questionable. Plus with boiled water, many people would use it too soon and burn the crap out of their faces.

So it isn’t the quality of ‘distilled’ that makes the water usable. It is that ALL distilled water is free from Amoeba. Whereas MOST tap water is. Most purified water is also free of Amoeba, but purified water is also dual-use, someone might drink from it and contaminate it prior to use for your nose.

So, to simplify it for the common person, use distilled water, but you do have to include salt in the water. Straight distilled water is not good for your nose.