In recent years recreational diving has gained popularity among women. Occasional decompression sickness and pulmonary barotraumata are cured with the use of recompression tables. To evaluate factors in therapeutic recompression, experiment Rusalka-2004 (Mermaid) was performed with participation of a female crew "descended" at air pressure of 70 m H2O and maintained in hyperoxic (pO2 = 0.45-0.5 kgs/cm2) heliox at 40-0 m H2O for four days. On "ascent" the crew was given a course of aroma rehabilitation. To assess effects of this therapy, entries in a dedicated questionnaire were made and the Spilberger-Khanin SAM (self-appraisal-activity-mood) test and a modification of the Dembau--Rubinshtein self-appraisal method were fulfilled on the daily basis. The best result was achieved in the subjects who were particularly favourable to this sensory stimulation and made own choice of scents of 100% natural essences.