Fani yosokoneza, yomwe imatchedwanso kutulutsa mpweya kapena mpweya wabwino, ndi chipangizo chomakina chomwe chimachotsa mpweya wodetsedwa, chinyezi ndi fungo mu malo otsekedwa.Mafani otulutsa mpweya amatha kugwiritsidwa ntchito m'malo osiyanasiyana: minda ya ziweto, nyumba zobiriwira, malo ochitirako ntchito zamakampani, ndi zina zambiri.
Werengani zambiri