Oomatshini bemizi-mveliso, ukufudumeza kunye neenkqubo zokupholisa umoya, izixhobo zoomatshini.
Isetyenziswa kakhulu kwiindawo zangaphakathi ezomileyo, ezimanzi kunye nezimanzi (kubandakanywa nemixube yeoli yamanzi), kodwa kungekhona ukusetyenziswa kwangaphandle.
Ufakelo olusisigxina phantsi kweemeko zomthwalo ophakathi koomatshini, kunye nezicelo ezinokuguquguquka ngamaxesha athile simahla, intshukumo engaqhubiyo ngokuqhubekayo ngaphandle komthwalo onzima okanye isikhokelo esisisinyanzelo.