PTFE inoraswa syringe pillring filter ndeyekutsanya, yakanakira uye yakavimbika firita chishandiso, kazhinji inoshandiswa mumarabhoritari. Iyo ine hunhu hwechitarisiko chakanaka, huremu hwakachena uye hwakanyanya kuchena. Nekuti hapana chikonzero chekutsiva iyo filter membrane uye yakachena iyo firita, inochengetedza inonetesa uye yekushandisa nguva yekugadzirira nguva yekugadzirira. Inoshandiswa zvakanyanya mumarabhoritari, inoshandiswa zvakanyanya sampuli pre-filtration, kujekeswa uye kubviswa kwenyaya yezvinhu, uye kusagadzikana uye kusimuka kwezvinwiwa nemagasi.