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Xiaomi simplifies the water filter

Xiaomi has sharply  simplified  both looks and functionality of the Mi Smart Water Purifier
​Bangalore, November 18 2019: Sad truth: we can neither breathe the air, nor drink the water,  today, the way it is delivered to us.  Civic bodies have given up any pretence that the water they deliver is potable, straight off the tap. The dangers  from dissolved salts, bacteria,, mud, heavy metals,  even the  chemicals that are used to "purify" the water,  render  simple boiling, no longer safe. We have to invest in complex  water purifiers whose innards ( some models  come in transparent housings)  bear a striking resemblance to  Quantum computers that are in the news these days. Apparently, it takes a combination of old fashioned charcoal filters,  with multiple   one-way membranes performing  what is called reverse  osmosis or RO, plus a good dowsing with ultra violet (UV)  rays, before all the water-borne baddies are eliminated.
Xiaomi, better known for mobile phones, is a surprise entrant into the water purifier business. They have the late comer's advantage: surveying the field,  understanding the pain points and working on them. The Mi Smart Water Purifier is an exercise in stark simplicity -- inside and outside. It is smaller than many of the competing products: the size of an A3 sized sheet of paper, weighs 6.7 kg and holds  7 litres of water.  This is a combo of RO + UV, with activated charcoal filters,   reduced to three cartridges. The real beauty of the Mi machine is the ease with which  the cartridges can be clicked in place or removed.... an exemplar of industrial design.  You don't need a technician  to do it. Each cartridge alerts you via a mobile app when it is time to change and the replacement cost is  upfront on the Mi site, before ordering: from Rs 899 to Rs 1799.
I also liked that the app  lets you check  the purity of the water,   at any time, measured  in TDS or Total Dissolved Solids  (less than 300 is excellent; 300-600 is good). Technicians usually carry a meter to measure TDS. Now you have the figure any time you like to check.  The Mi Smart Water Purifier is aggressively priced at Rs  11,999  and available only at the company's  site.    Anand Parthasarathy