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Old 26th Feb 2015, 19:26
  #111 (permalink)  
rh200
 
Join Date: Mar 2009
Location: Perth Western Australia
Age: 52
Posts: 809
There are two streams for outcomes in this argument.

1) Is there a large scale problem affecting significant percentage of the population, aircrew or general.

The answer is most likely no, but maybe its sitting below the noise.

2) Is there a problem that can affect a statistical insignificant amount of the population.

Very possible, but what else in our every day lives don't. Every day people have severe reactions to all sorts of things. So the question is do we we bother to do anything about it if that is the case.

Like every thing, its a cost benefit analysis. What is the cost of installing filter for example? Anyone have an idea on here?

Cost of modifications, certification, upkeep etc. What loss of efficiency if any and fuel burn. You don't install anything in a system without affecting its efficiency, no matter how small.
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