Originally Posted by
Phil Thien
Disclaimer: I haven't read the review.
Having said that... These types of reviews don't typically address separation rates/efficiency. Rather, they're really testing the filters. Anything that doesn't fall out in the cyclone itself has to make it past the filter before escaping.
CV uses Wynn filters (I believe). Now, I don't know which Wynn filters were employed, but I can assure you that all of the Wynn filters I've tested have exceeded my expectations.
The most likely scenario is (IMHO) a hole or a gap somewhere on the pressure side. Because the only other explanation would be that Wynn filters are inferior. And I can assure you, that isn't the case.