What about the concern that salt is bad for you?

Consuming too much salt is linked to high blood pressure. With salt therapy, you are inhaling a dry salt aerosol which only enters your respiratory system not your digestion tract. The salt particles are so fine that even if you were to eat the amount inhaled it would not pose a risk to your health. The daily recommendation for dietary salt is an ideal limit of no more than 1,500mg per day. The amount inhaled during a salt session is about 4-9mg, not even close!