Why is it dry and not humid sodium chloride aerosol that is used in halotherapy?
The simplest explanation is that the method simulates the microclimate of subterranean speleohospitals where a dry aerosol is present. A dry aerosol is formed in a halogenerator by way of producing a strong mechanical effect on salt crystals; its particles gain a high surface energy and a negative electric charge. Liquid droplet sodium chloride aerosols are electrically neutral. Due to physical and chemical properties, a dry aerosol has high penetrability and is more efficiently deposited in the respiratory tract in comparison to a wet aerosol. This allows efficient application of a dry aerosol in very small doses. Particles of the dry salt aerosol bonded with particles of air impurities due to forces of electrostatic interaction, accelerate their deposition, produce inhibiting effects on microorganisms, result in purification of the atmosphere of the therapeutic room, form practically sterile environment. A room where a halogenerator is used does not require any additional sanitation.
