Baileigh/Jet Air Cleaner
- Thread starter jeffinsgf
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Imemiter
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SRSemenza said:
I did a lot of cabinet installations with Bosch 12v before converting to Festool/Makita. Sold everything but the laser and two of those lights. Oh, and the little planer.
Jeff, I just picked up that 710 for my luthiering partner. She's cleaning up the table while I rig it for 110 and we're planning to install it in the laundry room until I get 220 to the shop (which is part of a new driveway project.) The chores never end!
Correct me if I'm wrong, but it appears both the older and newer Jet units as well as the Baileigh filter down to 1 micron. So technically I guess they are not considered HEPA which I think filter down to .3 or .5 micron. Will 1 micron be enough to keep the air safe to breathe?
Thanks, Mike A.
Thanks, Mike A.
Fine particles between 1-10 microns can still get into the airways, causing potential problems like asthma and bronchitis. So the shop air is still cleaner even though the filtering is not at the HEPA rating.
This air filtration system performs with a HEPA effectiveness:https://www.leevalley.com/en-ca/sho...MI9tmRisPaiwMVkC2tBh0BSR_REAYYASABEgK6s_D_BwE
This air filtration system performs with a HEPA effectiveness:https://www.leevalley.com/en-ca/sho...MI9tmRisPaiwMVkC2tBh0BSR_REAYYASABEgK6s_D_BwE
mike_aa said:
Somebody correct me if I am wrong, but I am pretty sure a filter spec stated in microns, without a corresponding specification of what percentage of those particles it will capture, is totally meaningless.
For example:
- a HEPA filter remove at least 99.97% of particles that are 0.3 microns in diameter
- an N100 mask will remove 99.97% of particles .3 microns in diameter
- an N95 mask will remove 95% of particles .3 micron in diameter
What does the Jet do ? -- remove at least 5% of 1 micron particles ? Without putting it in writing in their specs, we don't know. All there specs say, is 1 micron filter (which is the same spec that my Craftex unit shows).
HERE is the MERV HVAC filter definitions. So the Jet cleaner could simply be a MERV 8 furnace filter, which is actually what I use as a pre-filter (cheaper than the Craftex pre-filter --- they make it a custom size so one is forced to buy their filter, so the MERV 8 furnace filter needs a little extra "push" to get it in there)
The Lee Valley unit in your link provides a proper specification.
Another question I have with these air cleaners is if they even have the capability that mike_aa mentions. If you check out The 3d Handyman on YouTube, he's done a lot of videos on air filtration in the woodshop and if you're using 1" thick filters, you need quite a few of them to get the surface area to match the airflow - and I can't imagine that any of these commercial filters are capable of that with the small-ish 1" filters they feature.
Good point about the % of filtration.Steve1 said:
Based on the epa.gov info., my guess is that the Jet AFS system would be filtering from a low of 20% to a high of 50% of 1 micro particles since its inner filter is probably rated between MERV 8 to MERV 10. If the performance is much higher than my guess, I wonder why it is not given in the specifications.
I built my own air filtration system with a furnace squirrel fan and use MERV 12 and MERV 5 (pre-filter) filters for it.
ChuckS said:
I think that is a pretty good guess.
Since the Craftex filters have no real specs, I took my best shot and selected a MERV 8 for replacement of the "5-micron" pre-filter.
Clearly MERV 8 is significantly finer than the original '5 micron" filter. With the MERV 8 pre-filter, the "1 micron" filter stays much cleaner for a much longer period of time.
I did a bit of searching for specs and on Amazon for the Jet replacement inner filter, I found the following description:
"Trust JET-branded filters to provide the high quality and guaranteed performance necessary to keep your equipment operating at peak efficiency. The JET AFS-1B-IF Replacement Inner Filter features a 12.92-square-foot three-pocket filter with a minimum efficiency reporting value (MERV) rating of 11, meaning this filter excels at trapping particles between 1 and 10 microns in size. Perfect for a smaller home shop, the long lasting, high quality disposable outer filter matches your AFS-1000B or AFS-1000C air filtration system. Trust genuine JET replacement parts when it's time to exchange a component."
The link to Amazon is here.
I also saw some off brand filters available with MERV ratings as high as 14, but I don't know how well they would work.
[member=65451]Steve1[/member] That seems to be a good idea to replace the outer filter with a higher rated one. Thanks!
[member=57948]ChuckS[/member] That Powermatic unit looks pretty interesting. Thanks for posting!
I do have one of the older Jet units and some time ago when I was working with paint and shellac, I taped a thin charcoal impregnated filter blanket from a HVAC supply on the end and it helped with the fumes to some degree and it kept any overspray from getting on the main filters.
Thanks, Mike A.
"Trust JET-branded filters to provide the high quality and guaranteed performance necessary to keep your equipment operating at peak efficiency. The JET AFS-1B-IF Replacement Inner Filter features a 12.92-square-foot three-pocket filter with a minimum efficiency reporting value (MERV) rating of 11, meaning this filter excels at trapping particles between 1 and 10 microns in size. Perfect for a smaller home shop, the long lasting, high quality disposable outer filter matches your AFS-1000B or AFS-1000C air filtration system. Trust genuine JET replacement parts when it's time to exchange a component."
The link to Amazon is here.
I also saw some off brand filters available with MERV ratings as high as 14, but I don't know how well they would work.
[member=65451]Steve1[/member] That seems to be a good idea to replace the outer filter with a higher rated one. Thanks!
[member=57948]ChuckS[/member] That Powermatic unit looks pretty interesting. Thanks for posting!
I do have one of the older Jet units and some time ago when I was working with paint and shellac, I taped a thin charcoal impregnated filter blanket from a HVAC supply on the end and it helped with the fumes to some degree and it kept any overspray from getting on the main filters.
Thanks, Mike A.
At Merv 11, that would put the Jet filtering 65% of 1 micron particles. But a filter rated at Merv 11 performs better than 1 micron filter.
The first line of defense must always be at source and whenever possible at the HEPA level. It's unrealistic to expect an air filtration system to perform much better than 1 micron.
The first line of defense must always be at source and whenever possible at the HEPA level. It's unrealistic to expect an air filtration system to perform much better than 1 micron.
Cheese
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The original Jet AFS-1000B was rated at 85% for 1-3 microns and 98% for 3-10 microns. That would put it squarely in the MERV 12 category. I would expect (hope) the newer Jet and the Baileigh machines would perform at least as well if not better. [blink]
Cheese said:
Yeah, newer models should perform at least as well as, if not better than, the previous ones from the same manufacturer. Manufacturers should give such useful and critical information in their specifications, whether or not that's the case. After all, without such information, an informed decision is hard to make between different brands and models of air filtration systems in terms of their filtration effectiveness. An interesting question is: why is the info. given for the older machines but for the newer ones?
Cheese
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ChuckS said:
Ya Chuck, the information I found on the older Jet was not readily accessed, it came from the information pack I received with the item when I purchased it back on Feb 2004. Even the original owner manuals only mention using a 5 micron pre & a 1 micron final filter.
I just think at the time...21 years ago...people weren't that aware of the subtleties of filtration or just didn't care that much about it. I can guarantee you that 21 years ago, the Honeywell furnace filters I used, never carried a MERV rating on the outside of the package. [huh]
Cheese
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jeffinsgf said:
Remember...how can I forget!
At the time, stacking 2 each of the 1" thick filters on top of each other gave you the then equivalent of a HEPA filter. [big grin] [bite tongue] [bite tongue]
And then through the magic of science & technology, they started to produce 2" thick fiberglass filters with metal grids. [blink]
But is MERV12 enough? I don't really think so. From my understanding, it's only MERV13 or higher that filters out the .3 micron level particulates.
My concern is that these commercial filters at MERV 12 or lesser give the false impression that they are protecting your lungs.
My concern is that these commercial filters at MERV 12 or lesser give the false impression that they are protecting your lungs.
Even a MERV 13 filter may not be good enough as it can filter about 50% of 0.3 - 1.0 micron particles if the user is aiming at a higher efficiency.onocoffee said:
It all depends on what the user tries to achieve. A MERV 11 or higher filter is adequate if most of the 0.3 mircon dust is already taken care of at source. We need to remember that the air filtration system may serve to be the second or even third line of protection only.
[member=7266]jeffinsgf[/member] thanks for point out the sale on this Baileigh unit. I bought one to supplement my Jet DC for large tools and a CT for my Festools. Install was quick/easy. I even had available power on the ceiling of my shop. Timer and remote start are nice to have options.
Thanks again!
Thanks again!
