The composite and carbon cloth filters in Rediair have been rated for 3000 hours of continuous filtration. We recommend changing the filters every 3000 hours of use, or every 6 months to keep your Rediair filtering as effectively as possible and to avoid placing unnecessary stress on the fan motors.
Rediair will automatically notify you when the filter is due to be changed. When the "filter" indicator lights up continuously in red on the LCD panel, it's time to change to the filters.
For a guide on how to change the filters in the Rediair, you can check out our resources section online at www.gamahealthcare.com/rediair