Is it harmful to smell too much in the room?

Chinese medicine believes that mugwort fumigation room smell too much has certain harm.

Mugwort taste pungent, bitter, warm, there is a small poison, usually appropriate amount of mugwort fumigation room to help prevent mosquitoes, but mugwort in the ignition process will produce harmful substances, if long-term use mugwort fumigation room, smell too much easy to stimulate the human respiratory tract, cough, cough and other discomfort symptoms, will cause certain harm to people's physical and mental health

.