Chromotherapy

RGB backlight fills room with light to balance "energy" lacking from your body.

Chromotherapy, sometimes called color therapy, colorology or cromatherapy, is an alternative medicine method, which is considered pseudoscience.

Chromotherapists claim to be able to use light in the form of color to balance "energy" lacking from a person's body, whether it be on physical, emotional, spiritual, or mental levels.

Himalayan salt has pink color but it permits light through. And you can make any color you need with LED RGB lights behind a salt wall. That is how you can get chromotherapy together with halotherapy.