Where can I find medical grade distilled water in Bangkok?

[mortem]

Hi,

I need to find medical grade distilled water to fill a moisturer for a breathing system.

As this is for breathing, I know the one for battery will not fit (and also distilled water for battery includes electrolyte, so it is technically not pure).

I have been told that hospital suppliers can have some but I don't know any supplier.

Does anyone here can give me the address of medicial suppliers in Bangkok (if possible not too far as I leave in Asoke area)?

Thank you very much for the help.

PM

[watcharacters]

Contact a university and ask where their chemistry dept. gets it.