How sulfuric are your farts
Discussion
And lo… a whole new vertical market for the crossover PEMS/quantified-self industries is born! There's gotta be some Tang-like commercialization leads from NASA. Certain spacefaring billionaires are undoubtedly already way ahead in the personal gas chromatography-mass spectrometry orifice-telemetry product space. Sorry for the florid verbiage—I'm trying really hard not to say "Stillsuit buttplug".