Over time, your Airbiento will become less effective if the filter is dirty. We recommend that you replace your Airbiento Mini filter every six months, although some users report theirs can last longer!
Simply twist open the Mini and check the filter's cleanliness to see if a replacement is needed.
If you are still unsure of how to tell if the filter is dirty, please contact us and we will be happy to assist you!
Only one replacement filter per unit is necessary.