"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.
"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...