The difference between parfum and EdP is a slightly lower perfume concentration. 100 ml is a small packaging, but that also means you can take it in your carry-on when traveling.
From Cult Beauty
Hermès 24 Faubourg Eau de Parfum 100ml
Cosmetify
Hermès 24 Faubourg Eau De Parfum 100ml
This product is also available at 4 unverified stores.