Customer Support FAQ Classic Air Purifiers How often should I change my filter?

How often should I change my filter?

Blueair recommends a filter change every six months.
The light on your filter timer will indicate when it is time to replace your filter after six months of continual use.

If you use your unit in a highly polluted environment, you need to change it more often.
To ensure the unit’s high-quality performance, we recommend that you only use genuine Blueair filters.

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