Sabo, sabbin kwalabe marasa iska sun ƙunshi kwandon kwalba, na'urar fistan filastik a cikin diaphragm a cikin jiki, da famfon kai a bakin kwalbar. Lokacin da famfo ya baci, fistan yana motsawa sama cikin diaphragm.
Matsi yana aiki don cika ramin da babu komai sannan ya ba da abun ciki daidai gwargwado. Lokacin da abokan cinikin ku ke amfani da ƙananan yawa, Madaidaicin farashin famfo mara iska na iya zama mahimmanci, musamman don samfuran magani waɗanda ke buƙatar matakin daidaito mafi girma.