Place salt lamps in a open room such as the living room, office, or bedroom. The standard rule is that for every 16 square ft of space, you will need 1 pound of salt. Here is an example.
If your room is 10 inches x 10 inches, you will need a 6-7 pound salt lamp. For this calculation, take the square footage of your room and divide by 16. The number calculated will be the size of lamp you will need.
You can split by two lamps if necessary. For example, for a 240 square feet room, you will need a 15 pounds salt lamp. You can purchase two 7.5 pounds salt lamp.
We do not recommend putting a salt lamp in a bathroom where there may be excessive moisture from the steam.