My salt lamp is damp – is this normal?Naperville Salt Cave2020-10-15T14:57:27-05:00This is normal and an integral part of the salt lamp’s air purification process. Remember, Himalayan salt lamps and candle holders are hygroscopic- meaning that they draw moisture from the environment. As the lamp draws water molecules from the air, it is also elimination airborne pollutants such as dust, dander and pollen that travel on these same water molecules.