Yep, a team in your corner @Birdofparadise8 🙌🏻☺️🌺
Yes a balloon to sip oxygen… it tends to last quite a while, because it’s pretty much 93-95% oxygen, but the flow rate I use is only just over 1L per minute most of the time at rest, so that means on top of the approximate atmospheric concentration (sea level) of oxygen being 20%, an additional 1 L per min increases the concentration to 24-25% concentration, because each litre per min of flow tends to increase the available concentration of oxygen by 4-5% (so, 2 litres per min wound be 28%, 3 L per min = 32%, etc).
so, with having a balloon full of 93% oxygen (made by the concentrator), I can take a very small amount of oxygen from the balloon, while taking a big breath of atmospheric air, to approximate the concentration to approximately 24% which is the level I need at rest to boost blood oxygen levels to the lower level of normal range 🙂🌺
I’ve worked out just the right amount of oxygen to inhale while taking a full breath to get the right amount☺️
oh, yes - that sounds like a piezo thermoelement of some sort that you’ve had there under your nose maybe? They are a flow sensor: they give a wavy line with regards to in breath and out breath detected at the entry to the airways (nose and mouth) 🙂🌺
The interesting thing about those is they usually are correlated with the breathing effort and oxygen concentrations to help determine where any obstructions are situated, in the instance there’s observed sleep apnoea, from what I can remember, back in the day 🙂🌺💜