Perfume is divided into essence (PARFUM), perfume (EAU DE PARFUM), EAU DECOLOGNE (eau de cologne) and perfume (also called cold water) according to its concentration. "eau de toilette" is French, abbreviated as EDT, which refers to the concentration of perfume. Its fragrance yield is about 5% ~ 10%, and the fragrance lasts for 3 ~ 4 hours. The proportion of alcohol in eau de toilette is high and it is easy to volatilize, so it is suitable for daily activities such as going to work.
Extended data
Eau de toilette can be sprayed on clothes at will, because its essential oil concentration is not very high and it will not destroy the fat fiber of clothes. It can also be sprayed on the skin with veins such as the left and right wrists, behind the ears, on both sides of the neck, inside the elbow and behind the knee, or lightly sprayed on the hair tips, waist and ankles.
However, it should be noted that when wearing perfume, don't wear too much, otherwise the organic components in perfume will react chemically and destroy the original taste of perfume. Nor can it be sprayed directly on gold, silver and pearls, because spices are organic components, which will make them fade and damage the surface.
References:
Baidu encyclopedia-perfume