Permethrin...spray the outer layer of your clothes outside (with rubber gloves on and face covered) and let them dry overnight(don't let it hit your skin)
...the chemical mends with the fiber and is non-toxic on humans when dry(takes 4 hrs. to fully dry), ...kills arachnids, ticks,squitos etc... on contact...I use deet on my face and neck and remain bug free.......

They have a new model on the market called ThermaScent. This unit comes with a bracket that clips over the heating element. It also comes with three scent wicks that you place deer scent on. I'll be trying this new unit out shortly.