High-quality ventilation in a sauna is, first of all, a concern for health and microclimate. It prevents air stagnation, promotes moisture removal and ensures comfortable breathing during procedures. In addition, proper ventilation significantly extends the service life of lining, timber and other finishing materials, protecting them from fungi and mold. The TESLI assortment includes wooden ventilation plugs that are easy to install, safe, environmentally friendly and withstand high temperature and humidity conditions.