Just arrived from the USA with a new addition for my health a CPAP (Continuous Positive Airway Pressure) machine a common treatment for sleep apnea. Started looking for the subject Title and could not find any at the local Lotus Supermarket here in Ubon. Checked with the pharmacy and they told me to use regular bottled drinking water. Is there such a thing as distilled water here in Thailand?

As a last resort Lazada and Shopee have it

Any hardware shop or even car battery place will have it for sale .

Found this on the Lotus website.

Called in Thai น้ำกลั่น (upper left on the bottle)

You will usually not find any English description.

 

The description on the bottle says distilled battery water.

So don't search in the food section 😁

They sell it in Big C and 7/11  'narm glun'

just how distilled it is may be debatable   perhaps  use a Total Dissolved Solids detector (available online) to test it

And/or  buy a reverse osmosis  water filter which will get quite close

to distilled.

Get yourself one of these. I'd be absolutely lost without it now. $100 on Amazon plus shipping of course. 

 

You won't believe the slime and muck residue that's left after the cycle completes. Especially the raw water from the condo tap in my case. I even tried it with bottled water once and that had muck left over too. I use it for everything now, cooking kettle drinking water. Removes fluoride also which can still be found in bottled drinking water. If you are concerned about the demineralisation, it's pretty easy to remineralise it for drinking. Just do a google search for how to do.

VIVOHOME Water Distiller Countertop 1.06 Gallon/4L 750W Distilled Water Machine with Smart Switch Purifier Filter for Home Office, Black

14 hours ago, johng said:

use a Total Dissolved Solids detector (available online) to test it

Richard Barrow (blogger) tested a couple of drinking waters 

The cheap 7/11 house brand was free of any dissolved particles.

So the pharmacies advice just to use bottled drinking water is not that wrong.

I guess for the CPAP it's all about limestone or similar?

We use bottled water, (18+L @ 20 THB) and assume it RO, as <7 when tested with T...D...S pen, as is most small bottled waters sold, and 7-11 one of the better ones.

 

 

interesting ...

 

 

 

On 11/14/2025 at 5:06 PM, Dan747 said:

Is there such a thing as distilled water here in Thailand?

Someone else asked this recently. I was looking for a visiting family member 10 years back, and one of the medical retailers at Victory Monument told me the only distilled water factory in Thailand closed down (2011 floods? Not sure), and he said no other company was making it. But maybe that's changed. There's a CPAP store on the little road leading into Bangkok Hospital that might import it for foreigners (CPAP isn't really a Thai thing, though it's gaining momentum with 'sleep' labs popping up that are really only there as fronts in order to pitch/sell the machines - there's always an ulterior motive to everything here..).

On 11/14/2025 at 7:10 PM, KhunBENQ said:

Found this on the Lotus website.

Called in Thai น้ำกลั่น (upper left on the bottle)

You will usually not find any English description.

 

That one’s also sold in MrDIY. 

As been said ,any motorbike  or hardware shop will sell it ,my local shop sells it 10 baht/bottel.

Big C sells it in the automotive section , used it for years in my ResMed machine without a problem .

The bottles mentioned by khunBENQ are filled with demineralized water. Good enough for batteries or steam ironing but this water is not sterile so not recommended for respiratory aid systems. When you look at shopee for destilled water you will see a lot of choice. To humidify the oxigen from a oxigen concentrator we use sterile water from the same supplier as the oxigen concentrator itself. 

Back in the day, I needed a CPAP machine for a year. I bought my distilled water by the 22L bottles sold by a Medical Supply store in town. Chiang Mai has three stores IN town, and I imagine many others around the province.
Surely Ubon has some too?

IMO bottled water is fine, and on a side note the water from the fridge that runs out the back is distilled. 

Waste water from the aircon is also 'distilled'  or maybe more precisely   'condensated'  though I wouldn't really trust the water 

(to breath with, can't help thinking legionnaires disease )  unless you bypassed the usually long drain pipe  that builds up some nasty slime over a short period of time   which is what leads to the things leaking all over the  'whatever' (TV,Hifi,computer)  is below the the indoor (evaporator) unit.

 

Apparently some tumble dryers also feature a condensed water catcher  and Orchids like the water...

according to my mum and dad  not AI  😋

On 11/14/2025 at 5:06 PM, Dan747 said:

 Just arrived from the USA with a new addition for my health a CPAP (Continuous Positive Airway Pressure) machine a common treatment for sleep apnea. Started looking for the subject Title and could not find any at the local Lotus Supermarket here in Ubon. Checked with the pharmacy and they told me to use regular bottled drinking water. Is there such a thing as distilled water here in Thailand?

Destilled Water is used in some Starterbatterys, Car Shos will have.........................

DO you need it for your device? Im on CPAP (Resmed) now for 13 years.

I only have a nosecap (ESON 2), not a full mask. 

Only in beginning I used water as it was with the device, but hated it to every time refresh and clean.

It was an accessory with the device, at least, my device.

So could and took it out and ever since then without extra water for at least 12,5 years.

Knock on wood, ever since then didnt miss it at all.

My mouth stays closed and therfore no water problem and nose handles it well.

It is an accessory which you could use, but up to you. You dont have to use it. 

When I used it, beginning, even had just tap water of my country. Bottled water is just ok.

But if you use, change every time to fresh after night. Clean it every time.

I believe it was also slightly heated for better evaporation, dont know that anymore for sure.

Even in airco spaces I dont have problem with nose cap and nose, breathing.

I also blow out my nose in the evening, sniffing in water and then blow out dirt from the day.