He told me that it is the one that he ran in the shop. I would imagine that the noise would be determined by the particular fan but the one he recommends, the Vortex 8" VTX800 does not have a published sones listing on the manufacturers site
I'll bet a larger fan from that series with one of Wynn Enviromental's Nano filters would do even better... You would just have to find a new way to marry the filter to the fan other than how Bill did it...
The 9L300 Nano has a flange of 14" so, perhaps, you could put the 12" vortex blower on there and get 1100 CFM and really suck out a workshop!
This is definitely the way I am going to go as soon as I get the workshop up and running.
Thanks for the info! If I end up going this route (which is looking like the best option right now) I would just use the setup he posted about. He said it would effectively filter his entire house in 3 hours, so it could probably clear the shop in about 3 minutes!
Now I just have to figure out the best way to mount it. I originally planned to mount it to the ceiling, but now I'm wondering if I should be mounting it off to one side of the garage and directing the exhaust side in a way that will circulate the air in the shop a little better.
1 micron, according to Bill, is not small enough to capture the most dangerous of the particulate. You have to get to 1/2 micron or better to get the stuff that really impacts your health. Most of the woodworking filters from Wynn are .5 micron.
That is what started to confuse me a little bit. The cartridge filter I have on my DC is 1 micron and it seemed like all of the commercially available units only filtered down to 1 micron as well. It sounded like a pointless addition to the shop until I started reading Bill's site.
along the way, i'd upgrade that 1 hp DC to a 1.5 or even a 2 hp. a pre separator is a lot for a 1 hp to handle and maintain adequate air flow volume for effective point of generation dust collection. what is kept out of the air never has to be filtered.
Good to know. I always wondered just how much suction I was losing by adding the separator in there with such a small unit. Doing this as a hobby I seldom have to empty my separator, so I may sideline it for a while until I can upgrade.
Home made is the way to go, as mentioned filters are a lot cheaper.
Replacement filters are cheap yes. The Wynn filter will be fairly expensive upfront but will be a one time purchase. All I have to do from there is clean it whenever it is needed.