One fan can supply several compartments, and the system is designed to change the air in each compartment every few minutes .
Iphiko elinye linako ukunikezela ngomoya kwindawo eziliqela zokuhlala, kwaye le nkqubo yenzelwe ukuwutshintsha umoya kwindawo nganye yokuhlala rhoqo emva kwemizuzu embalwa.