Saunum AirSolo WallCompatible with large and small saunas Behind the Wall Installation Consistent, balanced steam temperature 3 Different airflow speeds with adjustable ventilation grille Himalayan Salt gives added benefits to the skin, and respiratory UL listed for safety Description The biggest advancement in sauna technology in 70 years. Installed within the wall of your sauna, the adjustable height (66. 5 to 90. 5) Saunum AirSolo Wall transforms your sauna bathing