Kwiimeko ezithile, Iigesi ezinokutsha zinokutsha kakhulu, ikhupha ubushushu obuninzi kwaye ibangele ukwanda okukhawulezileyo kumthamo werhasi oyingqongileyo, kukhokelela kugqabhuko-dubulo.
Ikharbhon monoxide inoluhlu lweziqhushumbisi 12.5% ukuya 74%. Ukudala umoya oxubeneyo otshayo, kufuneka isasazwe ngokufanayo ngaphakathi 12.5% ukuya 74% yomoya.