Show HN: Spaceflight-inspired pocket optical breath analyzer

Re:Show HN: Spaceflight-inspired pocket optical breath analy... by mhb on Tuesday October 07, 2025 @02:31PM (#45506903)

This looks interesting but I first went to the link and couldn't figure out what it was. Shouldn't you put the description you have here on the landing page?

The first thing I see is "Book the Test", "Data Hub". What?

Also, instead of leaving how to use the data up to the imagination, I expect you can get an accurate VO2 max from this. If that is so, that would be worth mentioning since I don't think there is an alternative easy way to get an accurate VO2 max measurement.

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Re:Show HN: Spaceflight-inspired pocket optical breath analy... by larichev on Tuesday October 07, 2025 @03:14PM (#45507477)

Also, VO2max is a very marketing-oriented indicator! But you’re right: the most accurate way to measure VO2max is breath-by-breath gas analysis during a maximal test. Wrist wearables (Garmin, Apple Watch, etc.) infer VO2max from HR/pace/power models it's convenient, but estimates and sport-dependent. Running vs cycling VO2max can differ for the same athlete.

Our device measures breath-by-breath VO2, VCO2 in real time and resolves individual breaths, which may unlock new respiratory metrics for researchers. The accuracy of threshold value measurements is equally important: ventilation threshold 1, ventilation threshold 2, tidal volume etc.

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Re:Show HN: Spaceflight-inspired pocket optical breath analy... by larichev on Tuesday October 07, 2025 @02:44PM (#45507059)

Sorry, this page isn't ready yet. The main page only has basic info. We've got a really tech team (4x PhDs) and we're testing real athletes and doing research, but that makes sense, and we'll definitely add more later! Thanks for your comment!

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