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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.
Filter reset for Connected Classic series (Classic 200/400/500/600 series)
After 6 months of continual use, the filter replacement indicator will turn orange and you will be notified by the Blueair Friend app 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 Blue series (Blue 121, 211, 211+, 411, etc.)
Turn on the unit and press and hold the main button for 10 seconds until the light disappears.
Filter reset for Sense, Sense+, Pro
When the red circle on the display is shown, it is time to replace the filter. To reset the filter timer, switch on the unit and hold your finger on the red circle until it disappears.
Filter reset for Classic E-series (models 270E, 450E, 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.