[crazygringo]

The arsenic is no longer true:

"since Oct. 15, 2009, no company is allowed to manufacture, distribute, ship or sell any products that leach arsenic in concentrations greater than 5 parts per billion (ppb)" [1]

And bacteria growth is solved by following the manufacturer's directions. For example, Brita filters in use need to be kept in the fridge and changed every 2 or 3 months.

[1] https://www.wqpmag.com/water-testing/testing-services/articl...

[evanlivingston]

I assume this is true for 1) filters that are NSF certified and 2) wish to not display a prop 65 warning.

A majority of the water filters purchased on Amazon are not NSF certified and ship with a prop 65 warning. In fact, it's difficult to purchase water filter components that do not have a prop 65 warning.