Post by
Larz »
https://forums.nicoclub.com/larz-u216291.html
Sun Nov 09, 2014 1:08 pm
I have always replaced mine with charcoal filters but I just did a quick google and found this:
The grape seed filter has two purposes...first it has the carbon on one side....that filters out allergens, pollution, etc. The second purpose is the grape seed extract which also adds to filtering pollution but it has the polyphenol that prevents your windows from fogging
I have never had troubles with fogging windows, but if you do, seems the grape seed is the way to go.