cyt7241208 wrote:個人不專業的意見 T...(恕刪)
stataxp wrote:錯。NSF 有標準 TDs 40 ppm 以下才可安心飲用。
我用zerowater過濾,tds都是0耶
slai60 wrote:NSF42和53就符...(恕刪)
stataxp wrote:TDS就是NSF42(恕刪)