High blood pressure. Heart disease. Severe heart and lung disease. People with skin diseases can't steam. \x0d\x0d\ Fever patients \ x0d \ People with fever and symptoms are forbidden to use the Tomalin steaming room. \x0d\ Children \x0d\ Children's body temperature rises much faster than that of adults. This will lead to a higher metabolic rate in children. Rapid internal circulation will increase the burden on the heart, and it is difficult to regulate body temperature through perspiration. Children should consult a pediatrician before using the steaming room. \x0d\ The elderly \x0d\ ability to maintain body temperature decreases with age. This is mainly due to the decline of sweat secretion function of circulatory system and sweat glands. When the elderly and infirm use the Korean sauna, they need to use a relatively low temperature to shorten the use time. \x0d\ People with cardiovascular diseases \x0d\ Individuals with severe cardiovascular diseases, such as hypertension, coronary atherosclerosis or people taking drugs, may have a fever for a long time, thus affecting blood pressure. Elevated body temperature increases the burden on the heart, accelerates blood flow, perspires more on the skin, and accelerates the respiratory system, thus maintaining a constant body temperature. This is mainly because the beating frequency of human heart has changed. When the body temperature rises by one degree, the number of beats per minute may increase by 30 times. \x0d\ Joint injury \x0d\ If there is a serious joint injury recently, do not use the Tomalin steaming room within 48 hours after the joint injury, and do not use it until the swelling symptoms disappear. \x0d\ Surgical implanter \x0d\ Metal stents, metal rods, artificial joints or any other metal substances implanted in surgery generally reflect far infrared light waves and cannot heat the part. Please consult your surgeon before using the steamer. If you feel pain near the transplant site during use, please stop using it. Silicone absorbs far infrared energy. Implanted silica gel as a substitute for nose or ear will become hot after being irradiated by far infrared light waves. Silicone resin will melt when it exceeds 200℃(392_).