1. Mfundo yogwira ntchito: (1) Pansi pa kuthamanga kwambiri (nthawi zambiri 10 ~ 20kv) ionization ya mpweya kuti ipange wosanjikiza wa ion oxygen; Ma ion mpweya wopanda mpweya ndi tinthu tating'ono tomwe timapanga totomu timaphatikizana kupanga chifunga cha utoto;(2) Kutuluka kwa Corona kumachitika pakati pa utoto.
Mfundo yake yofunikira yogwirira ntchito ndi yosavuta. Thirani ufawo mu chidebe choperekera ufa (cholembedwa 1), ndikusamutsa ufawo mu ndowa kupita ku mfuti yapopera kudzera pa mpope wa ufa (Venturi powder pump kapena HDLV powder pump) pa chivundikiro cha ndowa (cholembedwa kuti