Questions for Bill Pentz,
I think that the below posts make allot of sense and are excellent advice. I visited the Wynn site and looked at the Farr & Torit compatible filters you highly recommend. Maybe I overlooked something but I did not see where these filters were certified. I didn’t see where they reported any testing on these: ASHRAE, BIA ? Where did you purchase the certified filters for your own shop? Where are their ASHRAE tests posted on the Wynn site? Thank you in advance?
99.995% efficient at 1.0 micron and above
Washable
Torit-Style
2B100SBOL
Open Open
No inner Liner
100% Polyester Spun Bond
12.75" x 26" (100 sq.ft..)
126.00
99.995% efficient at 1.0 micron and above
Torit-Style
2A100SBOL
Open Closed
Bolt Hole
No inner Liner
100% Polyester Spun Bond
12.75" x 26" (100 sq.ft..)
134.00
99.995% efficient at 1.0 micron and above
Torit-Style
2C100SBOL
Open Closed
No Bolt Hole
No inner Liner
100% Polyester Spun Bond
12.75" x 26" (100 sq.ft..)
134.00
Sincerely,
Robert Witter
Oneida Air Systems, Inc.
Below are the quotes from Bill Pentz:
“ I also recommend you power it with my recommended impeller, blower design, and heavy duty motor. I tried to help by working out discounted prices on the parts from Clear Vue Cyclones, Electric Motor Warehouse, and Wynn Environmental.
bill
”That careful filter testing left me now only trusting filter ratings provided by an American Society of Heating, Refrigeration, and Air-conditioning Engineers (ASHRAE) certified independent testing laboratory. ASHRAE is not a government organization, but instead a private, non-profit group of professional engineers that set the standards for their industry. Unable to find any certified dust collector bags and knowing that most bags have so little surface area that then need constant cleaning which exposes me to the very dust I must avoid, I personally use certified cartridge filters with a cyclone to protect those filters. I recommend all others do the same”.
bill
“For commercial dust collection systems that vent inside into facilities that must pass regular government air quality tests, the vendors use filters tested and certified according to ASHRAE standards when new, not after building up this dust cake. A well seasoned filter will filter 20 to 30 times better than a brand new filter. Unfortunately with no oversight on our vendors and the testing being very expensive, most hobbyist filters are advertised with their outdoor fully “seasoned” filtering levels. This means most pass the finest unhealthiest dust most of the time when used indoors. Between moving too little air to capture the fine dust as it is made, hoods that do not control and contain this fine dust, and these open filters, most small shops build up dangerously high levels of fine dust unless they regularly get blown out thoroughly.”
bill
Suppliers from Bill Pentz's site
Clear Vue Cyclones: http://www.ClearVueCyclones.com now makes cyclones, material movement blowers, and provides material handling impellers. Ed Morgano who started this small firm has been a pleasure to work with and does excellent work.
Wynn Environmental (Dick & Rick): http://www.wynnenv.com/torit_filters.htm has the best pricing and service in providing excellent affordable cartridge filters, 3.5", 4", 5" and 6" clear flex hose in 25' lengths and clamps. They are my recommended source for the Farr and Torit compatible filters in both the washable poly and the less expensive blended cartridge filters. They also offer the Donaldson Torit 0.2 micron fine filters that I need to use to take better care of my poor lungs.
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Originally Posted by Robert Witter
