Hindi ko personally try ang Pur bottles, but a few of us moms in our playgroup have been looking at cheaper alternatives din kaya I understand your concern! The safest thing talaga is to read reviews from other Filipino parents who've actually used them, check kung may defects or leaking issues (super importante yan with bottles!), and maybe start with one or two para i-test mo muna bago bumili ng dami, kasi hindi lahat ng babies ay okay sa lahat ng bottle types, minsan choosy sila. If you find reviews or someone in the group na try niya na, let us know!