Which brand of water purifier is good

In fact, before purchasing a water purifier to measure the water quality of their own homes, and then choose the appropriate cartridge, and the cartridge to be replaced later, so the after-sales service must be good, otherwise it is very troublesome behind. Finally look at the price, after all, the price is also a very important factor. Like my family use Healy's water purifier filtration effect is very satisfactory, low noise, long service life, reliable operation quality.