It’s going great. I did actually buy a newer generator off Aliexpress (which is the Hacenor brand, and probably the same core unit as Higher Peak’s Mag-30). The volume of air the new machine puts out is much larger than the older one, in a similar time frame. It can also go to a much lower percentage of oxygen on the highest setting, about 8.5%, which is the equivalent of 6,700 meters, or 22,000 feet.
I also purchased an oxygen sensor. At the setting I’m currently at, it’s lowering to 15% oxygen in the tent overnight, which is equivalent to about 2700 meters or 9000 feet. Pulse Oxymeter ratings can vary, but I’ve seen them dip into the 80s often, usually higher 80s. One time, I got a reading in the 70s. However, I can vary from finger to finger, and I’ve seen ratings vary by 5-10% in the span within a minute, so not sure how accurate those things are. But, the trend in the tent is always lower than regular air.
The altitude is supposed to be added to your current altitude, so that suggests I am sleeping at an equivalent of 11,500 feet (since I live at about 2400 feet elevation), almost La Paz. They suggest sleeping at no more than 4000 meters (13,000 feet), as most people start to have sleep disrupted a lot going higher than that. I have tried to go higher than my current setting, but I did have some issues sleeping through the night, so figured I might need to wait a bit longer before trying to go higher.
One interesting thing, I’ve noticed that the lower oxygen/higher nitrogen air smells somewhat sweet. That’s the best way to describe it. Certainly pleasant, and fresh as well.
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