Buddy, it does make a difference to some of us!

I've seen the NW can-it's a fine design-but, it (all catch cans) is a very simple device and can work even if it is cheap.

Or pretty.

Plug-n-play is nice, but not for my extra $90.

JMHO, you understand. I'm sure. Right?

BTW-what's inside YOUR can?

I've used oil mist eliminators for vacuum pumps for 30+ years. These are more-or-less the same things. I buy mine from Kurt J. Lesker and prefer their house brand because it comes with a removable and cleanable SST mesh filter. See picture #2:

http://www.lesker.com/newweb/traps/o...uty.cfm?pgid=0

Others provide a copper mesh that, while it can be removed and cleaned, gets really cruddy if there is any water present. It turns green, grows a beard-all kinds of nasty things.

In my most humble opinion, I would vastly prefer a unit that can be serviced. Not just emptied.