The main purpose of using hay therapy rooms is to make people sweat at their body temperature, opening their bronchi. The room temperature is 36-38 °C. People prefer sauna or steam rooms to sweat more. However, the room temperatures of these places are very high. The choice of those who do not want so much heat and who only want to sweat with their own body temperature is hay therapy rooms. It is quite common in Europe. Oat hay is mainly used in the venue. People with lung disorders can get rid of bronchitis and shortness of breath thanks to Hay therapy.