Mtundu wa fan ya padenga yomwe imatulutsa mpweya wambiri nthawi zambiri ndi fan ya High Volume Low Speed ​​(HVLS).Mafani a HVLSZapangidwa mwapadera kuti zisunthe mpweya wambiri bwino komanso moyenera m'malo akuluakulu monga m'nyumba zosungiramo katundu, m'mafakitale, m'malo ochitira masewera olimbitsa thupi, ndi m'nyumba zamalonda. Mafani a HVLS amadziwika ndi masamba awo akuluakulu, omwe amatha kutalika mpaka mamita 24, komanso liwiro lawo lozungulira pang'onopang'ono, nthawi zambiri kuyambira pafupifupi ma revolutions 50 mpaka 150 pamphindi (RPM).Kuphatikiza kwakukulu kumeneku komanso liwiro lochepa kumathandiza mafani a HVLS kupanga mpweya wochuluka pamene akugwira ntchito mwakachetechete komanso kugwiritsa ntchito mphamvu zochepa.

Poyerekeza ndi mafani a padenga la nyumba zakale, omwe amapangidwira malo ang'onoang'ono okhala ndipo nthawi zambiri amakhala ndi mainchesi ang'onoang'ono a masamba komanso liwiro lozungulira, mafani a HVLS ndi othandiza kwambiri poyendetsa mpweya m'malo akuluakulu. Amatha kupanga mphepo yofewa yomwe imazungulira mpweya m'malo onse, kuthandiza kukonza mpweya wabwino, kuwongolera kutentha, komanso kupanga malo abwino kwa okhalamo.

Ponseponse, ngati mukufuna fan ya padenga yomwe ingathe kutulutsa mpweya wambiri pamalo akulu,Fani ya HVLSmwina ndiye njira yabwino kwambiri kwa inu. Mafani awa adapangidwa kuti apereke mpweya wabwino kwambiri ndipo ndi abwino kwambiri pa ntchito zamafakitale ndi zamalonda komwe kuyenda bwino kwa mpweya ndikofunikira.