The chamomile mosquito-repellent incense adopts a special formula, which will not produce smoke when burning charcoal, and the smoke close to zero is more friendly to human body and environment. In Wei Chao, there is only mosquito-repellent incense with slight smoke formula, and the mosquito repellent effect is similar. However, Lan Ju is more professional in making mosquito repellent, and it has been done for more than 40 years, which is highly recognized by consumers. Lan Ju won the annual China Light Industry Science and Technology Progress Award and China Environmental Label Certification. It's elemene mosquito repellent incense. Good.