chemical impregnated incense | scienceinfo.net

The more fragrant incense smoke, the more curved the incense is, the more toxic and easy to cause cancer
Smoke is no less toxic than cigarette smoke. Not only that, it can also be one of the causes of cancer that few people know.
How to identify clean incense and toxic chemicals
The incense (incense) impregnated with toxic chemicals has been rarely noticed by consumers, taking care of the traditions, habits and conceptions when using incense.