Among certain groups of Asian and Asian American women, that share is estimated to be 50 percent or more.
I suspect certain perfumes may be causing it.
I suspect certain perfumes may be causing it.
Another potential explanation is cleaning products.
I think these are both far more likely than perfume, as there is a much stronger link between AQI and lung cancer than perfume and lung cancer (if there is any at all).
Cleaning products is a possibility.
Incense is another one --- those who burn incense may not consider it smoking, but any burning plant matter is going to emit similar products of combustion.