https://ventracer.com/2026-10-16https://ventracer.com/r/hero.webphttps://ventracer.com/films/vt-reveal-poster.jpgMeet VenTracer27-second film with an original score: the VenTracer breath analyzer design, its six parts, and example breath-by-breath data. Design concept.https://ventracer.com/films/vt-reveal.mp427https://ventracer.com/films/why-poster.jpgWhy a watch VO2max number isn't enoughNarrated film on the limits of wrist VO2max estimates, 220-minus-age training zones and lab-only testing, and why breath gas exchange is the measurement. Sources listed on the page.https://ventracer.com/films/ventracer-why.mp480 https://ventracer.com/product2026-10-16https://ventracer.com/r/side.webphttps://ventracer.com/r/hero.webphttps://ventracer.com/explainer-poster.jpgHow VenTracer works, in 90 secondsNarrated explainer: why wrist VO2max is an estimate, how a lab measures it, and how the VenTracer on-mask analyzer measures oxygen uptake and ventilatory thresholds breath by breath. Renders of a design concept.https://ventracer.com/ventracer-explainer.mp494 https://ventracer.com/science2026-10-16https://ventracer.com/films/vt-breath-poster.jpgOne breath, measured25-second animation: breath flow, oxygen and carbon dioxide traces, the oxygen uptake formula, and breath-by-breath points climbing to a VO2max plateau. Illustrative signals.https://ventracer.com/films/vt-breath.mp425 https://ventracer.com/labs2026-10-16https://ventracer.com/r/detail.webp https://ventracer.com/pilot2026-10-16 https://ventracer.com/about2026-10-16 https://ventracer.com/investors2026-10-16 https://ventracer.com/faq2026-10-16 https://ventracer.com/learn2026-10-16 https://ventracer.com/learn/how-to-test-vo2max2026-10-16 https://ventracer.com/learn/portable-metabolic-analyzer-buyers-guide2026-10-16 https://ventracer.com/learn/smartwatch-vo2max-accuracy2026-10-16 https://ventracer.com/learn/ventilatory-thresholds-vt1-vt22026-10-16 https://ventracer.com/learn/vo2max-and-longevity2026-10-16 https://ventracer.com/privacy2026-10-16 https://ventracer.com/terms2026-10-16