How can I be sure the Coway R.O. system is reliable?

Coway R.O. Water Purifier has obtained the following certificates and recognition:-

Number 1 brand in Korea for five consecutive years

Tested & validated under Industry Standard Water Quality Association

Approved under stringent test from Korea Water Purifier Industrial Cooperative.

Awarded Certified Water Specialist from Water Quality Association.

TUV Certificate ISO 9001 and ISO 14001 &etc.

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