Ivalvu yokukhupha umoya kabini isebenzisa kakhulu ukutshintshela kwiivalvu eziphezulu nezisezantsi ngamaxesha ahlukeneyo ukuze kuhlale kukho umaleko weepleyiti zevalvu phakathi kwezixhobo zikwimeko evaliweyo ukuthintela ukuhamba komoya. Ukuba iphantsi koxinzelelo oluhle, ivalvu yokutshixa umoya kabini enomoya inokudlala indima ekulinganiseni nasekunyuseni ukuhamba kwevalvu yokunyusa umoya, ukuze isixhobo sikwazi ukuqhubeka sityhala ukutya kwaye sibe nomsebenzi wokutshixa umoya ukuhlangabezana namandla omoya Iimfuneko zokuhambisa umgubo kunye nezinto ezibunjiweyo.

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