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Hi All, I made this thing to control the flow of oxygen instantly so I don't let it waste away when I'm breathing out. So everytime I breath in, I press the trigger. It releases oxygen. Then while I hold the oxygen in I can let go of the trigger and tank will stop. So it doesn't keep flowing for nothing. It will save me by 50% if the tank and therefore each tank will last longer. I could have found a smaller press valve or switch, but I found this to be working so effectively and just a slight squeeze of a trigger. Note that the pipe from the tank to the gun must be thicker for obvious reasons. Also I know this tank is miniature. Cycle just begun, so my big tank is arriving today. Just an idea I thought off that might help others. Probably others came up with this too. But anyways. Costed me R30 here in SA which should be about 2 dollars. I can't upload a video to show it working cos of the size of the file. But I think you get the idea. Pain free wishes to all. Snowflake

your own demand valve nice

Wow, talk about a rabbit hole. I just opened every paper in a new tab. I'll probably create a LiquidText project to organize and distill them.

...i feel like me and my boy Sherman have entered the "wayback machine"....since i thought this has been general knowledge for decades!? nothing new but a short read. liking the part where they say will spur additional research (ANY research into ch is good research)....but more specifically, if lesser dosages are of sufficient efficacy so as to minimize the well known negative and severe potential side effects of over and/or extended use.... mr. peabody 'Clear Evidence' Oral Steroid Effective for 'Suicide Headache' (medscape.com)

This prompted me to go down a bit of a rabbit hole and it appears that there are some researchers looking at CH in the wider context of sleep disorders. This is a good summary page to start: https://pubmed.ncbi.nlm.nih.gov/19272283/#:~:text=Patients with cluster headache (CH,an associated abnormality in CH. An interesting quote from one of the papers: "Further, it is made plausible that the headache attacks are but one aspect of a more complex syndrome of central dysregulation manifesting as sleep-related complaints."