In this video, we introduce you to the FeNO200 – Alveolar Feno Test by Sunvou, a cutting‑edge method designed to measure inflammatory activity deep within the lungs’ small airways. Unlike traditional FeNO tests that focus on large airway inflammation, the FeNO200 measurement uses a higher expiratory flow rate to focus on small airway health — the regions often affected earlier in respiratory conditions.

The video begins by explaining what FeNO200 is: it’s a specific fractional exhaled nitric oxide test measured at a flow rate of 200 mL/s, offering sensitive detection of inflammation beyond the large central airways. High FeNO200 levels can indicate areas of concern deeper in the lungs — information that’s especially valuable for clinicians tracking small airway involvement in conditions like asthma and chronic airway diseases.

We then walk through the testing process step by step, showing how a patient breathes steadily into a Sunvou FeNO analyzer. The device records the nitric oxide concentration from the exhaled breath at the FeNO200 rate, helping to assess whether small airway inflammation is present. Throughout the walkthrough, clear visual cues and prompts guide viewers through proper breathing technique and device handling.

Next, the video highlights the clinical value of understanding inflammation in the small airways. By measuring FeNO200, healthcare professionals can gain deeper insight into disease progression, tailor treatment plans more accurately, and monitor how well patients respond to anti‑inflammatory therapies.

Finally, Sunvou emphasizes the innovation behind its FeNO technology — providing a reliable and non‑invasive tool that captures breath biomarkers with precision, helping clinicians make informed decisions and ultimately support better respiratory care outcomes.