Here is a question:
Is a filter that is 95% efficient at a given particle size only 5% better (i.e. not really significantly better) than a 90% efficient filter?
Or is it twice as good because it's only letting through half as many particles?
Is the logic that the 90% filter will just catch it on the next time through?
Not trolling, genuinely asking.
Is a filter that is 95% efficient at a given particle size only 5% better (i.e. not really significantly better) than a 90% efficient filter?
Or is it twice as good because it's only letting through half as many particles?
Is the logic that the 90% filter will just catch it on the next time through?
Not trolling, genuinely asking.