Philips New home air purifier AC4026/00 CADR 153 m³/h PM2.5 removal rate >99%
My Philips air purifier's/humidifier's filter light stays on
Perhaps you did not press the filter reset button properly. The reset button is a red button located under the air quality sensor inlet. With the appliance switched on, reset the appliance by pressing the reset button with a thin tool.