LSAT... the problems you referenced using the ASV machine could be tied to the exposure of BPAs, a component of the plastics used in the water tanks, hoses and even masks. Water, heat and even direct sun release BPA from the plastics into the air you'd breath. See, this... Bisphenol A, or BPA - Medi...

I've identified that there the water chambers, hoses and masks are not BPA free. Is anyone familiar with a brand/manufacturer that is? I have over 30,000 pvc waves per day and central sleep apnea resulting in breathing stops once per 30 seconds... so, an ASV machine is a must. I'd just rather not ri...