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| HEPA Air Purifiers.....What do you have? http://luthiersforum.com/forum/viewtopic.php?f=10101&t=45251 |
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| Author: | guitarjtb [ Sun Mar 01, 2015 10:00 am ] |
| Post subject: | HEPA Air Purifiers.....What do you have? |
There is a very good thread, by Fred, on ceiling mounted air cleaners, and another great thread, by Ken, on constructing a very inexpensive floor/ table top version. viewtopic.php?f=10101&t=45220 viewtopic.php?f=10101&t=45178 Most of the cleaners mentioned, or constructed, filter out the 1 micron and larger particles. As several people have pointed out, the particles <1 micron are the ones that do a lot of respiratory damage, and are most likely to be airborne longer. I use one of my box fan filters as a sanding station for my pick guards. (I still wear my mask for those pesky .3 micron floaters.) I also run the filters at night, to clean the air of the 1 micron and larger particles. I want a HEPA filter to compliment my other cleaners. The following is available from Walmart online: http://www.walmart.com/ip/5130782?wmlsp ... =sem#about My shop is 12' X 24' X 8'. Has anyone had experience with this one. I also would like to hear/see what other folks are doing about air cleaners and air purifiers in their shops. Thanks, James |
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| Author: | Doug Balzer [ Sun Mar 01, 2015 10:54 am ] |
| Post subject: | Re: HEPA Air Purifiers.....Reviews |
I was experiencing some persistent respiratory problems so I ordered this Asept Air 1550 from Costco. Hepa, uv filter, VOC filter, etc and I love how it automatically senses airborne pollutants and adjusts fan speed accordingly. I only installed it two days ago but already can discern a marked improvement. http://www.asept-air.com/product.php?productid=16  Sent from my iPad using Tapatalk |
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| Author: | Hesh [ Sun Mar 01, 2015 11:02 am ] |
| Post subject: | Re: HEPA Air Purifiers.....Reviews |
Not exactly but my work-around for getting the nasty little particles that only a HEPA rated filer will capture is to use the Festool CT-22 HEPA vac that I bought nearly 10 years ago now. I'm religious about cleaning up my mess at the source and right away too.... hoping that if I never let the dust get into the air I'll worry less about what I am breathing. Besides I get stressed out seeing dirt... |
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| Author: | guitarjtb [ Sun Mar 01, 2015 2:41 pm ] |
| Post subject: | Re: HEPA Air Purifiers.....Reviews |
Hesh wrote: Not exactly but my work-around for getting the nasty little particles that only a HEPA rated filer will capture is to use the Festool CT-22 HEPA vac that I bought nearly 10 years ago now. I'm religious about cleaning up my mess at the source and right away too.... hoping that if I never let the dust get into the air I'll worry less about what I am breathing. Besides I get stressed out seeing dirt... Thanks, Hesh. A HEPA vac is also high on my list. Looks like the CT-22 has been discontinued. The CT-26 is the closest thing to it that I see. |
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| Author: | meddlingfool [ Sun Mar 01, 2015 3:46 pm ] |
| Post subject: | Re: HEPA Air Purifiers.....Reviews |
Thing is, any dirt you can see isn't really the problem. The bad stuff behaves more like vapour than grit. If it falls out of the sky, it's heavy enough not to be the basic problem. So sorry, Hesh, IMO, having a HEPA filter on your vac (as I also do) isn't enough. As I've mentioned in previous threads and posts, adding a secondary installation of a permanent HEPA filter made a both immediate (well, overnight) and more importantly Very Discernible Difference. I was getting instant flu like symptoms (hmm, small particulates, anyone?) every time I stepped into my shop. Yes, I wear a good respirator a lot, but I spend usually 10 hours every single day in the shop, and it's not realistic to think they will all be spent behind a respirator. I'm in the process of doubling/trebling collection/filtering in the shop so maybe I'm a little over enthusiastic about this topic, but, I will summarize by saying that chucking a 100$ HEPA filter running 24/7 made a world of difference, as Doug can attest, and I heartily suggest it to everyone. |
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| Author: | kencierp [ Sun Mar 01, 2015 4:02 pm ] |
| Post subject: | Re: HEPA Air Purifiers.....Reviews |
Particle Particle Size (microns) one inch 25400 dot (.) 615 Eye of a Needle 1230 Glass Wool 1000 Spanish Moss Pollen 150 - 750 Beach Sand 100 - 10000 Mist 70 - 350 Fertilizer 10 - 1000 Pollens 10 - 1000 Cayenne Pepper 15 - 1000 Textile Fibers 10 - 1000 Fiberglass Insulation 1 - 1000 Grain Dusts 5 - 1000 Human Hair 40 - 300 Human Hair 60 - 600 Dust Mites 100 - 300 Saw Dust 30 - 600 Ground Limestone 10 - 1000 Tea Dust 8 - 300 Coffee 5 - 400 Bone Dust 3 - 300 Hair 5 - 200 Cement Dust 3 - 100 Ginger 25 - 40 Mold Spores 10 - 30 Starches 3 - 100 Red Blood Cells 5 - 10 Mold 3 - 12 Mustard 6 - 10 Antiperspirant 6 - 10 Textile Dust 6 - 20 Gelatin 5 - 90 Spider web 2 - 3 Spores 3 - 40 Combustion-related - motor vehicles, wood burning, open burning, industrial processes up to 2.5 Fly Ash 1 - 1000 Milled Flour, Milled Corn 1 - 100 Coal Dust 1 - 100 Iron Dust 4 - 20 Smoke from Synthetic Materials 1 - 50 Lead Dust 2 Face Powder 0.1 - 30 Talcum Dust 0.5 - 50 Asbestos 0.7 - 90 Calcium Zinc Dust 0.7 - 20 Paint Pigments 0.1 - 5 Auto and Car Emission 1 - 150 Metallurgical Dust 0.1 - 1000 Metallurgical Fumes 0.1 - 1000 Clay 0.1 - 50 Humidifier 0.9 - 3 Copier Toner 0.5 - 15 Liquid Droplets 0.5 - 5 Insecticide Dusts 0.5 - 10 Anthrax 1 - 5 Yeast Cells 1 - 50 Carbon Black Dust 0.2 - 10 Atmospheric Dust 0.001 - 40 Smoldering or Flaming Cooking Oil 0.03 - 0.9 Corn Starch 0.1 - 0.8 [color=#FF0000]Sea Salt 0.035 - 0.5 Bacteria 0.3 - 60 Bromine 0.1 - 0.7 Lead 0.1 - 0.7[/color] Radioactive Fallout 0.1 - 10 Rosin Smoke 0.01 - 1 Combustion 0.01 - 0.1 Smoke from Natural Materials 0.01 - 0.1 Burning Wood 0.2 - 3 Coal Flue Gas 0.08 - 0.2 Oil Smoke 0.03 - 1 Tobacco Smoke 0.01 - 4 Viruses 0.005 - 0.3 Typical Atmospheric Dust 0.001 to 30 Sugars 0.0008 - 0.005 Pesticides & Herbicides 0.001 Carbon Dioxide 0.00065 Oxygen 0.0005 |
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| Author: | meddlingfool [ Sun Mar 01, 2015 4:25 pm ] |
| Post subject: | Re: HEPA Air Purifiers.....Reviews |
What I take from that is that the finer you can get your particulate collection, the better... |
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| Author: | kencierp [ Sun Mar 01, 2015 5:24 pm ] |
| Post subject: | Re: HEPA Air Purifiers.....What do you have? |
Totally agree -- especially now that we know that some individuals have allergies and sensitivities to some of the stuff listed and other -- sad thing is some people are not aware they have a sensitivity problem/issue and just deal with the symptoms best they can and never eliminate the source. |
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| Author: | meddlingfool [ Sun Mar 01, 2015 5:39 pm ] |
| Post subject: | Re: HEPA Air Purifiers.....What do you have? |
Indeed. Even though I'm fastidious in a clean shop (if nowhere else), the difference in air quality made by a HEPA filter was nothing short of dramatic... I'm putting in two cyclones to get the main dust capture down to 99.8 of .02 microns, upgrading my air filter filters to HEPA, and still plan to but more standalone hepa's. Overkill, perhaps, but the more the merrier... |
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| Author: | Dave Rickard [ Sun Mar 01, 2015 6:59 pm ] |
| Post subject: | Re: HEPA Air Purifiers.....What do you have? |
Would putting some water in the bottom of a cyclone collection bucket help any? I'm thinking along the lines of a rainbow vacuum cleaner. |
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| Author: | meddlingfool [ Sun Mar 01, 2015 8:43 pm ] |
| Post subject: | Re: HEPA Air Purifiers.....What do you have? |
No idea whatsoever... |
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| Author: | Pmaj7 [ Mon Mar 02, 2015 2:25 pm ] |
| Post subject: | Re: HEPA Air Purifiers.....What do you have? |
I have an Austin Air HealthMate. It's a litte spendy but works very well. Searching for a consumer hepa, it's nearly impossible to find the only 2 specs that really matter; cfm (it only goes downhill once you turn it on) and sq feet of hepa filter(the longer it will last before clogging). They only want to tell you the room size it will work in! And make sure it is true HEPA (US government standard; must remove 99.97% of 0.3 µm) The Austin has 400 cfm and 60 sq feet of hepa. There is not much comparable. I have it in the "inside" shop, so it's not handling heavy dust. It's no frills, but clears the air fast when I want. All steel frame, made in usa. I don't really need the carbon but who knows, it might help with ca fumes. |
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| Author: | guitarjtb [ Fri Mar 06, 2015 4:31 pm ] |
| Post subject: | Re: HEPA Air Purifiers.....What do you have? |
I ordered the Honeywell 50250-S HEPA air purifier thru Target and I got it Wednesday. It has been running for 2 days now and I think I am really going to like it. I use my shop built box fan/Aprilaire filter for capturing the 1 micron and larger chunks. The Honeywell gets 99.97% of the ones down to .3 microns. I don't have a HEPA vac, but I have my shop vac double filtered, with a fine dust bag, as well as a cartridge filter. I also vent the vacuum exhaust to the outside, with a hose going thru my shop floor. When I am sanding pick guards with my drill press rig, I sit the box fan/filter right up against it and also position the vacuum hose right in front of the filter. The vacuum catches most of the dust and the box fan filter catches the dust down to 1 micron. I still wear my mask when I am sanding, since some of those pesky <1 micron particles will be floating around until the Honeywell collects them. Attachment: drillpress1.jpg Happy sanding. James |
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| Author: | Ed Haney [ Fri Mar 06, 2015 5:12 pm ] |
| Post subject: | Re: HEPA Air Purifiers.....What do you have? |
James, You mentioned running your filters at night. I do that too (24/7 for the HEPA filter by Hunter). I also installed a ceiling fan in my small shop (8'x21'x9' ceiling) and run it 24/7. That way I am always stirring up the air to cycle thru the HEPA. Then my walking around the shop does not tend to stir up more air and small particles than my fan has already stirred up. I have a Festool HEPA vac that has a Dust Deputy before it to get a lot of the stuff and extend the life of the Festool filters. I also have a ClearVue 5HP dust collector that I work hard to collect the dust at the sources including the drill press for drilling and drum sanding, a downdraft sanding table, a routing table, etc. A key piece of equipment is my Dylos air quality monitor. This tells me what's really going on the air. Ed |
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| Author: | guitarjtb [ Sat Mar 07, 2015 7:37 am ] |
| Post subject: | Re: HEPA Air Purifiers.....What do you have? |
Thanks, Ed. I checked out the Dylos monitor. Very nice piece of equipment. |
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