<prompt> Gadzira shanduro yakaoma kunzwisisa zvikuru yemutsara uyu Mune mamwe ma rebreathers, mavharuvhu ane nzira imwe chete anotungamirira gasi kupfurikidza neloop .  <response>: Chokwadika, shanduro yakaoma kunzwisisa zvikuru yemutsara wacho ndeiyi: Mune mamwe ma rebreathers, mavharuvhu ane nzira imwe chete anotungamirira gasi kupfurikidza neloop , nepo mune mamwe gasi rinosvitswa nokufemerwa rinodzokera shure uye mberi murutivi rwomutopota mumwe chete: ikoku kunonzi gadziriro yependuru. 