The water purification model that Chanya uses  Photo via Facebook/ Coway Thailand
 

Coway, the renowned water purifier brand, has reassured customers of its product quality following a claim by Thai celebrity Chanya Tamada that her purifier’s water contained coliform bacteria. Chanya aired her concerns on Facebook, alleging the water from her Coway device fell short of advertised standards.

 

The celebrity, previously reliant on imported bottled water, switched to a purifier to cut down on plastic waste. Seeking assurance of cleanliness, she tested the water, receiving results indicating high coliform levels, which suggest potential faecal contamination.

 

This prompted her to request a refund from Coway, only to encounter a complex complaint process, pushing her to publicise the issue online.

 

Photo via Facebook/ Chanya Tamada

 

Chanya's allegations rapidly caught public attention, given Coway’s popularity in Thailand for its high-quality water purifIn its defence, Coway assured customers that their devices meet international standards, promising a thorough investigation and affirming its commitment to customer feedback.dback.

 

On July 15, Coway shared test results from Chulalongkorn University’s Centre of Excellence in Environmental Engineering, confirming water purity in line with RO standards.

 

The company suggested that factors such as non-sterile containers or inappropriate testing conditions might have flawed the initial test.

 

Following this, Chanya admitted potential inaccuracies in her testing process and clarified her aim was purely to ensure water safety, not to harm Coway’s reputation.

 

  Adapted by ASEAN Now from The Thaiger 2025-07-17

 

 

Chanya admitted potential inaccuracies

 

So sue her