I have had several people tell me the earth scents spook deer more than the normal pads. Either way I play the wind. Use the thermocell all the time. Works great for hunting the swamp. Mosquitoes so thick they will push through the bubble but seem to not land and bite. If they smell your thermocell they can smell you. I have had more deer come downwind in the swamp and stop and catch the smell. With the thermocell I have had quite a few keep on going. So if anything it may help cover some of the scents. I have no idea if that is the case, but I sweat like crazy so no way I am able to fool a deers nose so I do not even try.