Most of these problems are exacerbated by the presence of irritants in the air.
Fragrances are respiratory irritants.
Virtually all organizations that are concerned with respiratory health list fragrances as triggers. Other studies have also shown perfumes to be triggers for asthma and a recent German case study documents occupational asthma caused by exposure to perfumes. Neurological Effects Fragrances are also known triggers for headaches and migraines. They can also have sedative effects. In one study fragrance chemicals acted on receptors in the brain in a similar manner as alcohol and tobacco effecting mood and function.