He found most were miticidal within 24 hours. He expanded his study to include fabric inoculated with mites and larger volume areas, ultimately focusing his work on wintergreen oil. While three, five or 10 drops of wintergreen oil killed mites in open petri dishes at the other end of a 15 L box, the amount of oil became critical when he used larger-volume containers. The same proved true when he tried the technique using thin wool shirt material and thicker wool sweater material inoculated with dense cultures of D. pteronyssinus mites. I am not really an advocate of chemical treatment of mites.
Physical measures are better.
If something is relatively benign, there may turn out to be potential in small areas. You can't fumigate a room by having open dishes of plant oils, but you can in a small closet or a drawer that has sweaters in it. However, he said he wonders whether the finding might be used to kill mites in carpeting. Perhaps you could dissolve some of this with the right emulsifying agents so you have a solution you could spray on a carpet. If you just left it there, it would evaporate quickly and the concentration wouldn't be high enough.