Take Cookie and Cookie's enclosure out of the apartment for the entire day when the spraying happens. It doesn't matter what the pesticide is made out of. Essential oils are "all natural and made out of plants" and they can cause neurotoxicity and death in reptiles.
Think about it. If you put a towel over your face and sprayed perfume all around the room that you were in, you would probably still be able to smell the perfume through the towel, meaning that the airborne particles are getting through the towel. A towel is not a barrier for pesticide. Don't risk it. Just take Cookie somewhere else.