Looking for low noise blower fan for air filter.

[VictorL]

I would like to build "dream" air filter for my shop, but can't find "right" blower.  In my opinion blower must be very powerful, but very quiet.  I can find blower's CFM, dimensions or power, but don't see level of noise.
Who is manufacturing low noise blowers? Where to buy them? What is reasonable CFM rate for 600-800 sq.f shop?
Is it possible to make unit much better and quieter that Jet 1000? I believe its noise level is around seventish dBA.
There are plenty of dust filters for around $150 with really low level of noise, but how good they are? (Wen, Grizzly, ShopFox and such)

Thanks. VictorL

 

[rljatl]

Not sure I understand - Are you looking for a dust collector or an air filter?

Air Filter

 

[VictorL]

I need something like this:

[attachimg=1]

 

[rljatl]

I need something like this:

[attachimg=1]

I think the link above is a better alternative than the one you show.  Take a look.

Sent from my SM-G960U using Tapatalk

 

[grobkuschelig]

Air Filter

Thanks for posting! Great link!

 

[VictorL]

I think the link above is a better alternative than the one you show.  Take a look.

Thanks, but I already have Laguna dust collector.  I need filter in addition to cyclone and Festool vacuums
[attachimg=1]

 

[Naildrivingman]

Have you considered a build clean unit?
http://www.buildclean.com

 

[rljatl]

I think the link above is a better alternative than the one you show.  Take a look.

Thanks, but I already have Laguna dust collector.  I need filter in addition to cyclone and Festool vacuums
[attachimg=1]

You are confused.  The link is to an air filter, not a dust collector.  Look at the picture in the link under C. Solution.  The air filter is made from a filter with a blower sitting on top of it.

 

[VictorL]

You are confused.  The link is to an air filter, not a dust collector.  Look at the picture in the link under C. Solution.  The air filter is made from a filter with a blower sitting on top of it.

thanks, got it, overlooked it on small phone screen.
For any solution I need quiet fan or blower.

 

[4nthony]

For any solution I need quiet fan or blower.

Older post, but I'm curious if you ever found a quiet blower motor? I've been thinking about upgrading my box fan air filter and have been looking at an air mover or a blower motor.

Rigid 1625 CFM Air Mover, which has a db rating of 60. Probably not as quiet as a blower motor, but on par with my air compressor.

OEM Blower Motor. The blower motor has a CFM rating of 1000 - 1220. No clue what the db rating on the blower motor is, but my furnace blower is pretty quiet. I assume this would be similar.

My current DIY filter is a This Old House style box fan filter...

...but I'd like to move a bit more air if possible.

 

[ChuckM]

I use an old furnace blower as my air filtration system. It, encased in a wooden box, isn't noisy at all. When other machines -- SawStop or Kapex (both connected to some kind of dust extraction) -- are in use with my hearing protection, I can't hear any sound from the furnace blower.

Regarding CFM, this Dayton blower (1640 rpm) has only 273 CFM listed:https://www.amazon.ca/Dayton-1TDR3-...ocphy=9001335&hvtargid=pla-308632947789&psc=1

The dB for my furnace blower:78.4  vs for the box fan 75.3. (Level at which hearing damage begins after 8 hours without using hear protection is 85dB.) Instead of 4, I now use only two filters one as a pre-filter for the furnace blower.

The box fan cleaner is found to be good for sanding station, etc. -https://www.cbc.ca/news/business/portable-air-purifier-tests-marketplace-1.5900782

I got all my 20x20 filters (MERV 11 /MPR 1200 / FPR5) here:https://alberta.furnacefilters.ca/collections/20x20x1 , about $6 Cdn per filter.

 

[ChuckM]

Another DYI air filtration system:

 

[Peter_C]

Supa quiet...well at least on medium. Although they are not cheap, the filter lasts a really long time. I run mine almost constantly, as I have a Dylos particle meter which seems to always read higher than desired. A few cuts with a power saw and the Dylos reads over 5000, which also means mask on.   http://www.powermatic.com/us/en/p/powermatic-pm1250-micro-dust-afs/1791331

 

[4nthony]

I use an old furnace blower as my air filtration system. It, encased in a wooden box, isn't noisy at all.

Yes. This is basically what I want to do: furnace blower in a box. I've been keeping an eye on Craigslist for used blowers but I haven't come across any that are local to me which prompted me to look elsewhere.

Regarding CFM, this Dayton blower (1640 rpm) has only 273 CFM listed:

273 seems pretty low. For comparison, this JET Air Filter mentions 1700 CFM. My LASKO Box Fan says it moves 1820 CFM, but I've got 4 2" filters on it so I have no idea what the actual CFM is.

I would think furnace blowers would be moving way more air than a box fan.

The dB for my furnace blower:78.4  vs for the box fan 75.3. (Level at which hearing damage begins after 8 hours without using hear protection is 85dB.) Instead of 4, I now use only two filters one as a pre-filter for the furnace blower.

I just measured the noise from my current box fan at 12" and the NIOSH SLM app put it at 66.5 db.

I've got it hanging over my outfeed/assembly table. It's not pretty and when it comes time to clean/change the filters, I'll basically need to reconstruct it with duct tape  [crying]

Supa quiet...well at least on medium. Although they are not cheap, the filter lasts a really long time. I run mine almost constantly, as I have a Dylos particle meter which seems to always read higher than desired. A few cuts with a power saw and the Dylos reads over 5000, which also means mask on.   http://www.powermatic.com/us/en/p/powermatic-pm1250-micro-dust-afs/1791331

I like how easily cleanable the filter is on the Powermatic unit.

 

[ChuckM]

Snip.
I just measured the noise from my current box fan at 12" and the NIOSH SLM app put it at 66.5 db. Snip.

If I remember correctly, the noise reading on my cellphone audio app for the box fan was also lower than that shown in the audio-meter. My Lasko box fan is rated 1785 CFM.

 

[Packard]

Or run a long hose and put the blower in another area of the shop.

I googled "low sone blowers" and found this: https://www.acmefan.com/InformationFiles/ModelInformation/OLDLiterature/ModelV.PDF

They have a chart listing both the CFMs and Sones.

 

[kevin clifford]

I have blower motors out of old mini split air conditioning units that a buddy of mine pulled out and salvaged. Built a couple boxes and added 2 inch thick filters. They are super quiet, and move plenty of air.  4 of them hanging in my shop. [attachimg=1]