Nthawi zambiri anthu amafunsa kuti, m’nyumba muli fumbi lambiri, kompyuta, tebulo, ndi pansi zili ndi fumbi.Kodi choyeretsa mpweya chingagwiritsidwe ntchito kuchotsa fumbi?M'malo mwake, choyeretsa mpweya chimasefa PM2.5, zomwe ndi tinthu tating'onoting'ono tosawoneka ...
Werengani zambiri