In the Universe, everything is perfect, because the oxygenation is total.
On this planet, before the pandemic of death, there was Life and there were exceptional aromas.
After the pandemic of death occurred, everything is extracted from putrefaction. There are no more aromas. There are various smells. These various smells can be complemented with something pleasant, namely a fragrance. Perfumes are usually chosen at the pleasure and to the taste of each and everyone.