Resetting the orange filter light for the connected Classic series (Classic 200/400/500/600 series):
After 6 months of continual use, the filter replacement indicator will turn orange and your Blueair app will indicate that it is time to replace the filter.
To reset the Classic series filter timer, switch on the unit and press and hold the filter replacement button for 10 seconds until the light disappears.
Filter reset for Classic E-series (models 270E, 450E,455EB, 555EB, 550E, 650E, etc.):
To reset the filter timer, press and hold the RESET or TIMER button for 10 seconds. The filter timer light goes out and the counter starts counting again. To pause the filter timer light for five days, press the SNOOZE button.
You can find instructions for the filter replacement timer in the user manual provided with your unit. All user manuals are available online under our Customer Support section.
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