"The only known process which strongly discriminates..."
Better?
Seriously, talk about "damned if you do, damned if you don't"! If I post calculations to put numbers against claims I get told off for over-complicating - even when it's as simple as pointing out that 200 parts per billion is 2,000 times smaller than 400 parts per million. If I make a minor simplification I get called a liar and propagandist. Such is life, I suppose.
