Salt is a natural mineral that can generate small amounts of negative ions (oxygen atoms that are charged with an extra electron). Studies have shown that in high concentrations these negative ions can have positive impacts on the mind and body. Salt rock can also help cleanse the air by attracting the water molecules from the atmosphere around it, including any particles and pollutions.
 
It is said that rock salt can also increase energy levels, difuse digital haze, boost your sleep, and relieve asthma and alergy symptoms.
 
These medium tea light holders range between 0.5kg and 1kg.