Traveling to Scotland from US; question

[luvdamouse91]

Need water for DH CPAP machine - is the US we use distilled water. Can't seem to find that Tesco sells this? What do you call this water, and can I this at market or pharmacy? Same as water used for ironing, room vaporiser, and car battery. Thanks, much.

 

[A Small World]

Ive just replied on your other thread on US community board but I assume this is what you mean

https://www.tesco.com/groceries/en-GB/products/272512807