It’s very difficult to give a single number for the lifespan of carbon filters, as it depends greatly on the VOC levels inside your home. These vary greatly between different homes. For example, in homes that have recently been renovated or have new furniture, the VOC concentrations will typically be higher than those that have not.
That’s why we recommend determining when to change your carbon filter based on your individual situation – you can perform a carbon filter ‘smell test’ by taking your carbon filter out and smelling it every 1-2 weeks. If it gives off a metallic or acidic smell, then this means it is saturated with VOCs and ready to change.
We don’t recommend trying to clean the carbon filters, unless there are large dust particles or pet hair on it.