The word "only" was used in the context of not being as good as 99%. I was (obviously) talking solely about the rating at 50 microns since I had already made the point that the OE filters made for Japanese and German vehicles are only nearing 100% efficiency at that micron rating.
I did not mention anything about efficiency ratings at lower micron sizes. It is purely your incorrect interpretation that it was somehow implied.
I did not mention anything about efficiency ratings at lower micron sizes. It is purely your incorrect interpretation that it was somehow implied.