These fans are fitted to increase air movement and assist in circulating the fresh or conditioned air being discharged by punkak-louvres, distributors, etc.
Ezi zivuthelo zilinganiswa ekunyuseni umoya oshenxisela kwaye uncedisa ekujikelezeni ukuphola okanye umoya opholileyo othi ukhutshelwe yivithi yekroba, abathumeleli, nezinye.