Delta 9: Just do it in a ventilated area and don't put the hair dryer too close to the solvent. If there isn't ventilation fumes will build up and the ignition source from the element in the dryer and spark generated from the brushes in the electric motor will spell ignition.
I once tried to dry a pan of methanol infused with cactus alkaloids in an oven.
It was a convection oven, with the fan in the back.
Anyways I throw it in there on a low heat setting and sit down to eat some food at the table, 10 minutes later... BANG!!! The oven door blasts open and the pan is sitting there with nice 8 inch blue flames coming off of it. Those flames started to spread to the sealer stuff around where to door meets the oven and the wood above the oven was going to be next (it's one of those built-in to the cabinet ovens.)
I grabbed a fire extinguisher and gave it a couple shots. What a mess.
Fire extinguisher crap all over the inside of the oven, the floor, and in the methanol/pyrex pan. Luckily my parents were away for the weekend. It took 4 hours to clean it all up. What a pain in the ass, that fire extinguisher dust is so hard to clean up, it gets EVERYWHERE.
My extraction was toast. Wasted my cactus, and all the work that went into it. Ended up dosing some MDMA that night instead of the anticipated mescaline.
It could have been much worse.
Edit: if you want Aya, yeah you can just brew the mimosa and an MAOI. If you want smokable DMT you have to extract it.