... Ozone therapyØ Chomotherapy(LED lights) Ø Music therapy Spa-501 is a multisensory hydrotherapy tub offers different kinds of wellness ... massage for unlimited restorative,customized spa services. Spa-501’s 79 gallon(300 liters )hydrotherapy treatment tub ... propitiation, efficacy of vapor)b,Fluidity(sparge, hydraulic pressure)c,Biochemical aspects(solvency, osmosis, diffusivity, emulsification, lotion)d ...