Can i get distilled water in supermarkets or. Distilled water is better for your health and the longevity of your cpap machine. Pin On Health If distilled water is not available where you live use bottled water. Distilled water for sleep apnea machines . Rovsun countertop water distiller machine all stainless steel interior with 4l bpa free container home distilled water purifier filter 750w pure water maker 1l h 5 gifts 4 5 out of 5 stars 103 102 99 102. I m just a truck driver with sleep apnea who is involved with international abuse testing of cpap machines in semi trucks. A sleep apnea bi pap machine is important for me. When it comes to filling your humidifier chamber remember that even if you boil tap water you can t fully remove minerals or chemical contaminants even though it will kill microbes. Answer 1 of 7. We generally recommend distilled water because cpap manufacturers make the recommendation for distilled water in their documentation. At home i test...