Is it harmful to health to order indoor air purification?

Hygienic incense, many of which are chemical components, will do harm to the body and affect the lungs or trachea if it is ignited for a long time in a narrow environment with no air circulation.

Many chemical fragrances (or artificial fragrances) added to perfumes and air fragrances have certain toxicity, which not only harms the health of users, but also threatens the health of people around them, especially pregnant women and infants.