Feno library

The place to hear from patients and read our latest stories

What is thunderstorm asthma?

Changes in weather and environmental factors can cause asthma, but have you ever heard of thunderstorm asthma? Let’s take a look at what t...

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How to prepare for a FeNO test

To help you feel comfortable and prepared, here’s what you need to know before your FeNO test

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Back to school: Top Tips to manage your child’s asthma

How does pollution affect asthma?

World Asthma Day 2025 – “Make inhaled treatments accessible for ALL”

Why does feno matter?

World Asthma Day 2026 – Access to inhalers for everyone with asthma

What does my feno score mean?

Will vaping affect my feno level?

Tips for managing your asthma during the colder seasons

The benefits of FeNO testing

Tips for managing your asthma in hay fever season

Feno stories

Read our real patient stories and experiences on how feno testing helped with their condition. From clarity with diagnosis, validating their struggles, to understanding their condition for better outcomes.

Meet Ben

How FeNO Testing Led to the Right Diagnosis for Breathing Issues

Meet Nadia

How FeNO Testing Led to an Accurate Asthma Diagnosis and Changed Her Life¹

Meet Leila

How FeNO Testing Helped Confirm Asthma in a Young Child¹

Meet Ethan

How FeNO Testing Helped Him Prepare for the Army Safely

Meet Amina

How FeNO testing transformed how she lives with asthma

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