rimo
Member
I just finished reading an article in FWW that tested Air Filters. The winner was one from Jet. I went to Jet's website and was reading the specs on this unit: 1/5HP 115v 3 speeds, speed 1, 550 CFM, speed 2, 702 CFM, speed 3, 1044 CFM. This system uses a 5 micron filter on the outside and a 1 micron filter on the inside. They say it can clear a 20x20 shop in 5 minutes.
Here's my question:
Currently I have been using a 20"X20" box fan that pushes 2500 CFM with a furnace filter on it. I paid $15 for the fan and maybe $10 for the filter. I started doing more research on the filters and found that they use a rating sytem called MERV. anything with a MERV rating of 5-8 can capture 3 microns, MERV 9-12, 1 micron and MERV 13, .03 micron. (according to the MERV rating chart I found online).
Grainger carries MERV 13 filters (.03 microns) in a case of 12 for 62.40 thats just $5.20 per filter, their part number 2EKJ5. they also carry the MERV 8 filters (3 microns), part number 6B937 in a case of 12 for $12.40 thats just 1.03 per filter.
If I use my $15 box fan and 1 each of the filters @ 5.20 & 1.03 each then it should only cost me $21.23 for the system per filter use.
I realize that the fan is probably much louder than some of these air filtration sytems but does anyone know if I am missing something else on this? Can it be this simple to make an efficient system at home for a fraction of the cost? Assuming of course that I set it up properly and hope to eliminate any gaps between the filters and the fan.
Please let me know if I am way off base on this. I would like to use this sytem as long as it will protect my lungs like the commercial units would.
thanks
Here's my question:
Currently I have been using a 20"X20" box fan that pushes 2500 CFM with a furnace filter on it. I paid $15 for the fan and maybe $10 for the filter. I started doing more research on the filters and found that they use a rating sytem called MERV. anything with a MERV rating of 5-8 can capture 3 microns, MERV 9-12, 1 micron and MERV 13, .03 micron. (according to the MERV rating chart I found online).
Grainger carries MERV 13 filters (.03 microns) in a case of 12 for 62.40 thats just $5.20 per filter, their part number 2EKJ5. they also carry the MERV 8 filters (3 microns), part number 6B937 in a case of 12 for $12.40 thats just 1.03 per filter.
If I use my $15 box fan and 1 each of the filters @ 5.20 & 1.03 each then it should only cost me $21.23 for the system per filter use.
I realize that the fan is probably much louder than some of these air filtration sytems but does anyone know if I am missing something else on this? Can it be this simple to make an efficient system at home for a fraction of the cost? Assuming of course that I set it up properly and hope to eliminate any gaps between the filters and the fan.
Please let me know if I am way off base on this. I would like to use this sytem as long as it will protect my lungs like the commercial units would.
thanks
