Keeps noticeably poorer air outside ...

My cabin filter be changed and had to listen to and say, the activated carbon filter are better than the conventional filter. Ask around and read for a little, I decided this activated carbon to be ordered sentence and replace it with the normal paper filters. What can I say, it holds odors such as exhaust gases of other smelly road users such as lorries considerably better! I think that one is with the charcoal set on the better side, as well as Harmful substances and discourage not only the pollen. I am happy and will buy again determined in the exchange.