The Cedar Air Ventilation Louver (4'' x 10'') is an essential addition to your sauna, designed to introduce fresh air and improve overall air circulation. Crafted from high-quality cedar, this louver not only enhances the functionality of your sauna but also complements its aesthetic with a natural wood finish. Ideal for creating a more comfortable sauna atmosphere, this ventilation louver is typically installed with a lower (intake) vent and an upper (exhaust) vent to facilitate efficient air exchange.