Ihame ry'akazi: Bitewe nabafana kandi bigakwirakwizwa no kuyobya, umukungugu wo mu kirere ukururwa hejuru yibigize filteri mugihe gaze isukuye isohoka mukirere.Umukungugu uri muyungurura uzahanagurwa na magnetiki yumuriro wamashanyarazi hanyuma usohore muri valve munsi yumukungugu.