Uhlobo lwefeni yophahla olukhupha umoya omninzi ludla ngokuba yifeni yeHigh Volume Low Speed ​​(HVLS).Iifeni ze-HVLSZenzelwe ngokukodwa ukuhambisa umoya omninzi ngokufanelekileyo nangokuphumelelayo kwiindawo ezinkulu ezifana neendawo zokugcina impahla, izakhiwo zoshishino, ii-gymnasium, kunye nezakhiwo zorhwebo. Iifeni ze-HVLS zibonakaliswa ziiblade zazo ezinkulu, ezinokufikelela kwiinyawo ezingama-24, kunye nesantya sazo sokujikeleza esicothayo, esiqhele ukuba phakathi kwe-50 ukuya kwi-150 revolutions ngomzuzu (RPM).Olu dibaniso lobukhulu obukhulu kunye nesantya esicothayo luvumela iifeni ze-HVLS ukuba zivelise umoya omninzi ngelixa zisebenza ngokuzolileyo kwaye zisebenzisa amandla amancinci.

Xa kuthelekiswa neefeni zesilingi zemveli, ezenzelwe iindawo zokuhlala ezincinci kwaye zihlala zinee-blade diameters ezincinci kunye nesantya esiphezulu sokujikeleza, iifeni ze-HVLS zisebenza kakuhle kakhulu ekuhambiseni umoya kwiindawo ezinkulu. Zingadala umoya othambileyo ojikeleza umoya kuyo yonke indawo, zinceda ekuphuculeni umoya, zilawule ubushushu, kwaye zenze indawo ekhululekileyo kubantu abahlala kuyo.

Lilonke, ukuba ujonge ifeni yophahla enokukhupha umoya omninzi kwindawo enkulu,Ifeni ye-HVLSmhlawumbi lolona khetho lulungileyo kuwe. Ezi fans zenzelwe ngokukodwa ukubonelela ngokusebenza okuphezulu komoya kwaye zilungele ukusetyenziswa kwemizi-mveliso kunye norhwebo apho ukuhamba komoya okusebenzayo kubalulekile.