A: Why I cannot see the color of the filter life indicator?
A: The battery might be out of power. Do not worry, the filter indicator is replaceable. Check this video to know how to change the battery.
Original Video Source
A: Why I cannot see the color of the filter life indicator?
A: The battery might be out of power. Do not worry, the filter indicator is replaceable. Check this video to know how to change the battery.
Original Video Source