Kwiinkqubo zokungenisa umoya, iipayipi zomoya ezinyamezelayo zisetyenziselwa ukondla okanye ukutsala umoya. Icandelo lomnqamlezo lombhobho wokungenisa umoya lijikelezileyo kwaye lixande. Ukongeza kumbhobho othe tye, umbhobho we-ventilation wenziwa ngee-elbows, ukugoba ngasemva nangaphambili, ukugoba okuguquguqukayo kobubanzi, iindlela ezintathu, ezine kunye nokunye ...
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