We are developing functional prototypes of a novel tool to prevent mosquitoes of medical importance (vectors of diseases such as dengue, chikungunya, Zika and malaria) from biting their human hosts. Our Electronic Mosquito Barrier (EMB) repels mosquitoes using high power pulsed electric fields. This non-chemical insect repelling technology has the advantage that it will work instantly at any time and any place, independent of vector species and their insecticide resistance status.