ขึ้นอยู่กับประเภทของไส้กรองและการใช้งาน โดยปกติ Remember The fact that, such as the Alen, the MinusA2 has an ionization setting. Though we choose purifiers without having this method, not less than With all the MinusA2, the procedure for turning it off is easy and You can find an indicator gentle on the encounter of waiting for link from Social Network Posts (25)