Mafani a High Volume Low Speed ​​(HVLS).Amadziwika ndi mainchesi awo akulu komanso kuthamanga kwapang'onopang'ono, komwe kumawasiyanitsa ndi mafani azikhalidwe zapadenga. Ngakhale liwiro lenileni lozungulira limatha kusiyanasiyana kutengera mtundu ndi wopanga, mafani a HVLS amagwira ntchito pa liwiro loyambira kuzungulira 50 mpaka 150 pamphindi (RPM).

Mawu akuti "liwiro lotsika" mu mafani a HVLS amatanthauza kuthamanga kwawo pang'onopang'ono poyerekeza ndi mafani achikhalidwe, omwe amagwira ntchito mothamanga kwambiri. Kuchita kothamanga kotsikaku kumathandizira mafani a HVLS kuti azisuntha bwino mpweya wambiri kwinaku akupanga phokoso lochepa komanso kuwononga mphamvu zochepa.

Liwiro lozungulira la fani ya HVLS idapangidwa mosamala kuti ipititse patsogolo kuyenda kwa mpweya ndi kufalikira m'malo akuluakulu monga malo osungiramo zinthu, malo opangira zinthu, malo ochitira masewera olimbitsa thupi, ndi nyumba zamalonda. Pogwira ntchito pa liwiro lotsika komanso mpweya woyenda mofatsa, mosasinthasintha,Mafani a HVLSamatha kupanga malo abwino komanso olowera mpweya wabwino kwa okhalamo pomwe akuchepetsa kugwiritsa ntchito mphamvu komanso ndalama zogwirira ntchito.