What Is the Lifespan of the Carbon Filters?

It’s very difficult to give a single number for the lifespan of carbon filters in an air purifier. How long an activated carbon filter lasts depends greatly on the level of gases and VOCs it filters when in use.

These levels of VOCs vary greatly between different homes. For example, VOC levels are typically much higher in homes that have recently been renovated, have new furniture, or have smokers.

That’w why we recommend against giving a ‘standard’ number for a carbon filter’s lifespan. Instead, we recommend running what we call a carbon filter ‘smell test’.

Learn more: how to run a ‘smell test’ to tell when to change your carbon filter »

We don’t recommend trying to clean the carbon filters. Only if they have large dust particles or pet hair lodged inside them, can you gently remove this off with a cloth or brush.

Learn more about our range of simple, no-nonsense Carbon filters »


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Smart Air is a social enterprise that creates simple, no-nonsense air purifier and provides free education to protect people’s health from the effects of air pollution. We are proud to be the only certified B-Corp dedicated to fighting air pollution.