What is mold? Learn why it grows inside homes, and how to stop it from coming back
What is mold? Read all about the causes, effects, and what to do about it.
Annabel Robertson
Indoor Air Quality & Radon Resources
Master your indoor environment. Explore expert guides on radon gas, CO2 levels, and pollutants. Get the latest air quality insights and health tips from Airthings.
What is pollen? Learn how it enters your home and what you can do about it
Learn where pollen comes from, how it enters your home, and how you can reduce it if you or someone in your family suffers from allergies.
Annabel Robertson
What are volatile organic compounds (VOCs)?
A complete guide to what VOCs are made of, where they come from, and what to do about them
Annabel Robertson
What is indoor humidity? Ideal levels, and when it's too high
Is your home too humid? Learn what 30%, 60% and 70% humidity mean for your health and home, the ideal level to aim for, and how to fix it.
Annabel Robertson
What is particulate matter? PM1, PM2.5 and PM10 explained
What do PM1, PM2.5 and PM10 mean? See the difference between particle sizes, safe PM2.5 levels indoors, where particles come from, and how to reduce them at home.
Annabel Robertson
What is CO2, and how do you reduce high CO2 levels in your home?
Is the CO2 level in your home too high? See safe ppm levels, the symptoms of high CO2, what causes it, and simple ways to reduce it, including in your bedroom.
Annabel Robertson
What is radon? Safe radon levels, testing, and what to do
Radon is an invisible gas and the leading cause of lung cancer in non-smokers. See a radon levels chart in pCi/L and Bq/m³, what's safe, and when to act.
Annabel Robertson
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