Guides

How to read a CO2 number and what to do about it.

Our guides are published on the page each one is about, so the advice sits next to the thing it describes.

• Carbon dioxide monitors explained, what the number means, where to put a monitor, and the two minute test that shows whether a room actually clears.
• Air pollution meter or CO2 meter?, which instrument measures what, and why the two questions are related but not the same.
• What we stock and what we do not, the range in plain terms, including why an ozone machine is not an air purifier.

If your question is not answered in one of those, email us at theteam@co2meter.eu.com and we will answer it directly.