Why is the package in chanel no.5 not EDP but EP? Do they mean the same thing?

In perfume, EDP means faint essence or perfume, and EDT means faint perfume. Generally speaking, the word EDP is not written directly on the packaging of perfume, but as Eau de perfume. The so-called EDP is the abbreviation of Eau de perfume, and the abbreviation will not be used on the packaging and label of perfume. Please see if there is such English as "water of perfume" on your perfume package. If not, just an EP.