You can use water filter straw or water filter bottle to filter water which is quickly purify water and the water is safe and fresh to drink.

The GWF water filter used to be made by GE. GE have replaced the GWF water filter with GE MWF Smart Water Filter which is available as a replacement for the original GWF water filter.

The Sleeve: Diercon pump water filter uses aluminum metal material; Katadyn pocket water filter uses plastic material;

The Filter Element: Diercon pump water filter can easily replace the only part of filter element; Katadyn pocket water filter needs to replace the whole filter element and the connection.

a water filter or filter paper

You cant filter it out. you desalinate water through evaporating the water out of the salt.