Most mosquitoes are not attracted to the light and when homing in on a meal, the females — who do the biting — are looking for ammonia, carbon dioxide, heat, and other skin excretions not given off by the bug zappers.
Enamikku sääski valgus ligi ei meelita ning toitu hankivad emased — kes just hammustavadki — otsivad ammoniaaki, süsinikdioksiidi, higi ja muid nahaeritisi, mida aga elektrilised putukapüüdjad ei erita.