According to Brita they remove chlorine and cadmium (a heavy metal), amount other things. [1] As near as I can tell, "gravity filters" work on the same pricipl

According to Brita they remove chlorine and cadmium (a heavy metal), amount other things. [1] As near as I can tell, "gravity filters" work on the same priciple as Brita filters [2]. [1] https://www.brita.com/why-brita/what-we-filter/ https://www.brita.com/why-brita/what-we-filter/ [2] http://www.phoenixwaterfilter.com.au/images/stories/phoenix/Gravity_2.jpg http://www.phoenixwaterfilter.com.au/images/stories/phoenix/... P.S. I have never worked for Brita and havent used their products in years, so please dont take my comments as shilling.