I've had the SpiroPD for a few years now and I like it. I didn't get insurance to pay for it, but I am finding it very helpful in managing CF. I have the model without the software, but when I want to record the numbers I get I use the camera in my phone.
Things that it helps with are:
-identifying the immediate and delayed response of medicines and supplements (sometimes after I use things for a while my response can change dramatically)
-identifying when I might be having an allergic reaction (if my FEV1 starts going down below a certain number and nothing else has changed, I start looking around for something in my environment that might be bothering me)
Other ways I use it are:
- if I have a bad reaction to medicine, I use SpiroPD and then take a picture of my numbers on the spirometer with my camera to document how my numbers have changed with the medicine. Then I use something else that I know will pull me out of the problem and again use the SpiroPD (this may take a few days) and take another snap, and then show both of these to my care team. (I have a lot of sensitivities to various things and this way I can show them what is really happening, which they might be skeptical about otherwise.
-as an early warning device: if my numbers start sinking below a certain number I can quickly evaluate what changes I might need to make in my daily treatments/exercise program to get me back into the good zone again.
-as a general learning tool about the types of things that might increase your numbers. Sometimes you just need to rest a bit. Once when I took a break from exercise for a while and slept quite a bit more every night my numbers went up quite a bit.
So all in all, it's a good learning/observation tool. Since you are an engineer Ethan, I suspect you can find lots of uses for this.
In terms of product quality I find that it is good. I believe it is used in studies with CF patients (so it must be pretty accurate) and I haven't had any problems with the device. It is well-designed and has nice controls (better designed than most products for CF, I think). I'm sure you'll find areas that could use a bit of improvement, but overall I'd say "pretty good". Areas for improvement include - the arrow down button displayed on screen is a little close to some other onscreen buttons and you'll find that instead of arrowing down, you might bring up the graph/flow display instead. (A bit of a pain.) Also, the time to exhale is longish and you may not look forward to doing it
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Jerry Cahill did an excellent video about SpiroPD
https://www.youtube.com/watch?v=7gl6NZH24qY which will show you the device in much more detail. He uses his daily.
And you can enter to win one here:
https://www.facebook.com/spiropd?fref=nf