Maximum temperature settings vary by model.
Select upgraded models allow the control panel to be set up to 170°F, depending on heater output and electrical configuration. Other models are designed with a maximum setting of 140°F, in accordance with safety certification standards and system design.
Please note that infrared saunas are engineered to raise your core body temperature, rather than simply increasing the ambient air temperature. Actual interior air temperature will typically range between 105–140°F, depending on room conditions, preheat time, and model.
For specific maximum temperature details, please refer to the product page of the model you are considering.