Muffler yapadera yamadzimadzi imakhala ndi zida zochepetsera phokoso lamphesa ndi madzi m'madzi, komanso imapangitsa kuti digiri ya vacuum ikhale yokwera komanso yokhazikika, anti-corrosion, osaipitsa, phokoso lotsika, losunthika mosavuta, komanso valavu yosinthira vacuum ikhoza kukhala ndi zida. malingana ndi zofuna za kasitomala ndipo kagwiridwe kake ndikosavuta.