Yes you can! You can put dry herb directly into the glass chamber of the Firefly (a loosely packed, coarse grind works best). For vaping oils, place the included concentrate pad into the chamber first and then add a couple of drops of oil on top of the pad. Make sure to change the heating profile to the Concentrates setting in the app for the best experience. Just a little bit of oil will go a long way. Both experiences are very smooth and flavorful!