In this case you are probably using your Pingi in a bathroom or similar space with fluctuating humidity level. You can do this, but the strong fluctuations in the humidity level confuse the indicator. When the indicator keeps turning blue shortly after taking a bath or shower, the ventilation in the room itself is probably enough to take care of any excess moisture in the air. When Pingi is full of moisture, the product will no longer be able to remove any more moisture from the air. The indicator will change colour depending on the current humidity level in the room. When the relative humidity percentage (RH) is high, the indicator turns pink. When it drops strongly, the indicator will return to blue. All you need to do is to regenerate it to restore its dehumidifying function.