Dry salt therapy device with converging-diverging nozzle

A dry salt therapy device comprising:

• a blower;
• an exhaust passage fluidly coupled to the blower, the exhaust passage comprising a converging-diverging nozzle including a converging section, a throat section, and a diverging section;
• a grinding chamber configured to aerosolize salt;
• a salt vent configured to fluidly couple the exhaust passage and the grinding chamber;
• and
• a grinding chamber air inlet positioned upstream from the salt vent, the grinding chamber air inlet configured to fluidly couple the exhaust passage and the grinding chamber, wherein the grinding chamber air inlet is configured to flow air from the exhaust passage into the grinding chamber and into the salt vent,
• wherein the device is divided into a plurality of housing modules that are configured to be removable from one another, wherein a first module includes a bottom portion of the grinding chamber, and a second module includes a top portion of the grinding chamber, such that removal of the second module also removes the top portion of the grinding chamber.