Blueair 603 Air Purifier (2016 version)

The Blueair 603 is ideal for a large living area such as family room, master bedroom suite, any large living area. Included with 603 models, this magnetic timer reminds you to change your filters every 6 months as recommended for optimal performance of your Blueair air purifier. The filter change indicator is a timer that counts down from 188 days (6 months). The timer is independent of actual run time. When 0 days remain, change the filters and reset the timer for another 188 days (6 months). This is a completely manual unit. The user simply selects the optimal operating speed using the control knob on the unit itself.