Heat-not-burn e-cigarettes are also known as HNB e-cigarettes. Its main feature is to use a special heating device (NTC thermistor) to heat the supporting cigarettes, and "curing" the smoke at low temperature, because the tobacco is not burned, which greatly It reduces the harmful substances that are produced with high-temperature combustion in the use of traditional cigarettes, and is a safer and less harmful tobacco product. Heated enough to emit smoke, the taste is closer to real smoke. Among them, temperature control is very important. Therefore, heating non-combustion electronic cigarettes need to increase the NTC thermistor to detect and control the temperature to improve the service life of the electronic cigarette.