Lets talk about a pump's 'Exhaust Filter'...

General Composites Discussions Equipment Talk
#1

The ventilation in my office leaves a bit to be desired - so I’ve been thinking of ways to route my pump’s exhaust (and other tools) outside. I currently have an Edwards E2M2 and a Edwards RV12 - both fitted with an ‘Oil Mist Filter’ like so:

However, it seems this mostly is there to trap oil as the name implies. There is another product which can sit atop the mist filter, which seems to be an activated charcoal filter, that claims to scrub the air nearly completely:

http://www.sisweb.com/vacuum/filter/fk201.htm

So my question is in two parts:

  • What filters (if any) are you guys using?
  • If I route the ‘mist filter’ outside, how long of a span of tube could I run without impacting the pumps operation?

thanks guys.

#2

I’ve used a universal Fuel filter connected to a hose with the end fitted inside a jar/bucket with water :wink:

#3

I use oil-less :wink:

However, some that we do, just have the mist filter as shown. You can always do what TNT said, and make a bubbler with water or oil. Maybe a fancy self-made baffle system, but it might be hard to clean out once and awhile.
Tube with breather?

#4

Hmm, I may give the fuel filter an idea for the short term. As for making a ‘bubbler’, wouldn’t that just trap particulates and oil? I imagine it works like a bong/water pipe - which definitely doesn’t trap vapor/smell :).

But you’re still venting Expoxy (or whatever) fumes from the part into your workspace…that can’t be good, right?

#5

If you decide to make your own and owndering a baffle steel pads work well. Not the ones with the fine mesh but the ones that are about 1/32 strands of steel.

#6

If the pump is capable of pushing through a charcoal filter, I would skip that mist filter, and route the exhaust outside. A decent length of hose should not be a problem.

#7

I have try with a bottle with inside scothbrie to separate vapor oil, but doesn’t work. Now exhaust is connect with a tube to outdoor.

#8

compared to the open container your resin is in…not much more. The only thing you are venting, is that very thin resin flow front.