The point of this post was to highlight the advertised ability to filter pollutants other than biological contaminants. Biological is easy, chemical pollution is difficult to overcome. With the population increase and concentration in cities, along with commercial farming, ground water in many areas will very likely be polluted with chemicals, heavy metals and other poisons. Having a small and light filter would be very helpful. If it can do biological and other contaminants at the same time, that would be awesome.

I agree that I would prefer to have a filter that I could pour through into a container rather than a straw type.