A perfumer was a person who prepared oils, powders, and mixtures for three uses:
Medicine
Perfumes
Incense used in religious ceremonies
Many plants, when crushed, provided oils or powders that smelled unique.
A perfumer is also known as an “apothecary” (Exodus 30:25, in the King James Version) or a “confectionary” (1 Samuel 8:13, in the King James Version).