Dziwani momwe TEYU imatsimikizirira kudalirika kwa ma chiller ake a mafakitale kudzera mu kuyesa kolimba kwa kugwedezeka. Omangidwa motsatira miyezo yapadziko lonse ya ISTA ndi ASTM, ma chiller a mafakitale TEYU amapereka magwiridwe antchito okhazikika komanso opanda nkhawa kwa ogwiritsa ntchito padziko lonse lapansi.