Air Filtration Unit Mod #1: Jet Air Filtration Mod

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Blog entry by Chris Cook posted 05-20-2012 11:31 PM 2868 reads 1 time favorited 4 comments Add to Favorites Watch
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I am looking for some input from the bright minds here.

I have a pretty small workshop. Since it is in the center of my basement, there is not outside access (windows, doors, etc.). To keep dust under control, I have a dust collection system for collecting dust from my tools. In addition to that, I have a JET JET AFS-1000B air filtration unit ceiling-mounted as well.

This AFS is much more than I need in this small space, but I may have more room later. I usually run it at it’s lowest speed setting.

I have access to some 24×24x4 Glasfloss MERV filters and it gave me an idea on making my AFS work better in my shop.

The idea is to effectively make the intake larger. The larger size would accommodate the bigger filter. With this, running the AFS at the higher speeds would have a better effect on cleaning the air.

In addition, angling the intake down would help pull the dust from the area where I generate the dust.

thanks for any input.


-- Chris, "all we are is sawdust in the dust collector""

4 comments so far

View wooded's profile


365 posts in 2265 days

#1 posted 05-21-2012 02:26 AM

Chris, first off I realize I don’t know where your airflow obstructions are but to my way of thinking (and owning the same unit) rather than making a vaccum cleaner out of it, I was more concerned with the out flow and what kind of circulation I was creating by how I positioned the unit. I find this to be an awsome unit and I believe the intake is probably optimal as it is. In the right shop an appliance to turn the air out as it exits would create a vertical swirl or flow which might be nice. Just my thoughts…................;-J

-- Joe in Pueblo West, Colo.

View redryder's profile


2393 posts in 3095 days

#2 posted 05-21-2012 05:03 AM

My shop is a little larger than a two car garage. I have the same unit hanging from the ceiling in the middle along one wall. I think your over thinking this. Mine has been up for over a year and works great as is. I run it at the lowest speed and just blow out the filter with an air hose as needed. It is advised to put it along a wall to circulate the air around the shop. The dust has no trouble finding my unit. Good luck…................

-- mike...............

View Chris Cook's profile

Chris Cook

323 posts in 2274 days

#3 posted 05-21-2012 11:48 AM

You’re probably right (in both cases). The problem is that my shop has a shape that prohibits a good circular flow. I need to smoke bomb my shop and see if the air flow is right. If it is as I suspect, I am thinking a big, ceiling mounted vacuum may be the answer?

Thanks for your input.

-- Chris, "all we are is sawdust in the dust collector""

View wooded's profile


365 posts in 2265 days

#4 posted 05-21-2012 02:00 PM

As you probably have seen, some put these filters at near ground level rather than high thus eliminating the gravity issues, but then one would need the physical space to do that like a shelf under a workbench or something like that…....;-J l’m still betting that the egineers chose the proper intake for this thing.

-- Joe in Pueblo West, Colo.

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