Zosefera zotsatizana za RELP, zopangidwa ndi Great Wall Filtration, zidapangidwa makamaka kuti zigwiritsidwe ntchito m'magazi.Zosefera izi zimakhala ndi mphamvu zapadera zochotsa lipid, ndikuchotsa bwino zotsalira za lipid m'magazi.Ndi zipangizo zamtengo wapatali komanso mapangidwe olondola, amatsimikizira kukhazikika ndi kudalirika kwa kusefedwa, kulola kuti mankhwala a magazi asamalidwe mosavuta.Kaya amagwiritsidwa ntchito poika magazi, kukonza plasma, kapena njira zina zopangira magazi, mapepala osefera a mndandanda wa RELP ndi chisankho chodalirika, chopatsa ogwiritsa ntchito zinthu zamagazi zogwira mtima komanso zoyera.