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You should clean or replace the Photon Pre-Filter at least every 6 months. If your environment is particularly dusty or you have shedding pets, we recommend checking the filter monthly and cleaning it more often to ensure proper airflow. The Photon p
To clean the pre-filter, first remove it from the unit. You can either gently tap it to shake out the dust or rinse it with cool tap water. Note: The unit will turn off when you remove the filter, which is normal and will not damage the purifier. Mak
A flashing red filter light means the filter tray is not completely closed. Simply press the tray firmly to ensure it is fully engaged. A steady red filter light means it's time to replace the dirty filter with a clean one.