The phenomenon of dry burning in e-cigarettes is usually caused by the following reasons:
1. **Lack of liquid**: The atomizer of an e-cigarette requires a certain amount of e-liquid to keep it lubricated and cool. If the e-liquid is insufficient, the coil will overheat and cause dry burning.
2. **Viscous e-liquid**: If the e-liquid used is too concentrated or of poor quality, it may lead to insufficient atomization, resulting in dry burning.
3. **Too high frequency of use**: When the e-cigarette is inhaled continuously, the atomizer does not have enough time to cool down, which can also cause dry burning.
4. **Equipment failure**: If the atomizer is damaged or the coil is aged, it will affect the atomization effect and cause dry burning.
5. **Improper settings**: Some devices allow users to manually adjust the power. If the power setting is too high, it is also easy to cause dry burning.
To avoid dry burning, it is recommended to check the e-liquid level regularly, use appropriate e-liquid, and give the device sufficient cooling time. At the same time, timely replacement of atomizers and coils is also a necessary maintenance measure.
