This is a periodic PSA: many people are scent-sensitive! If you have friends with asthma, eczema, migraines, scent allergies, or who are pregnant, don’t get them scented products as gifts! For extra credit, also do not send them gifts in a box that reeks of scented products!
I’m sure there are many more conditions that are sensitive to scents, too. These are just off the top of my head (and the first 3, off the top of my medical history.)