Cleaning a Wynn filter while attached to a DC

[dbhost]

Mark, I got into a discussion about the cartridges a little while ago and found that on average, a cartridge should be replaced about every 3 years, ...

That's news to me. Where did you hear that? Looking at Wynn's web site at http://www.wynnenv.com/35A_series_cartridge_kit.htm I find the following quote...

Our recommendation? The Spun Bond is the best overall filter...it's basically a lifetime filter.

[bruegf]

When I talked to Wynn to order my filter I had planned to buy the spun bond and he talked me out of it.  Said that for hobbyist use,  the paper blend is still a lifetime filter.   Just blow it out with an air nozzle once in a while.  With the miniscule amount of fine dust that gets past my separator I'm guessing I'll need to blow it out once or twice a year.

Fred