Why does Amazon's description say it filters to 2 microns, when HEPA requirements are .3 microns?
199842
These are not true HEPA filters; they are HEPA-type filters. True HEPA filters are available at http://www.amazon.com/Holmes-HAPF30D-Replacement-HEPA-Filter/dp/B0045LQCIO.
541300
In talking with the manufacturer, I learned that the dc1100 pro is able to measure small particles down to .5 microns. The dc11 measures down to 1 micron. I learned that for my purposes in terms of monitoring an air purifier and air quality in general, it isn't necessary to get down to .5 microns. The Pro would be suitable for checking air quality for clean room applications as in woodworking areas etc.
1950245
3. :-). It's got something to do with the density of the filter. The higher the number the more tiny the particles it can trap. However, this also cuts down on airflow and will cause your system to need to run harder or longer, which will raise your energy bills. My research into the matter suggested 11 or higher is for commercial/industrial needs. But 8 was deemed efficient enough / recommended for residential purposes. I hope that helps. Dontcha hate it when you ask a question and someone responds "Google it"?
1039163
I honestly have no idea. That being said, I was concerned about that too. My solution was to put in (2) filters that were one pipe diameter larger then my inlet piping.
656249
It moves! I'm using the tower in the living room of a 1-bedroom apt. It circulates throughout on med speed. The filter is HEPA-TYPE, not strict HEPA. This basically means it filters @ 3 microns rather than the smaller @ 1 micron that a HEPA will catch (or some filtering sizes like that).
229578
Yes, though I think the .5 to 2.5 micron range is only for the pro version. For mine, small particles are 1-5 microns, large is > 5.
28930
I think the flow rate will depend a lot on which filter you install inside it. I have used a 50 micron and a 30 micron filter and couldnt tell any difference in either one. My flow rate is not noticably diffe rent than it was before I installed the unit.
1950243
3. :-). It's got something to do with the density of the filter. The higher the number the more tiny the particles it can trap. However, this also cuts down on airflow and will cause your system to need to run harder or longer, which will raise your energy bills. My research into the matter suggested 11 or higher is for commercial/industrial needs. But 8 was deemed efficient enough / recommended for residential purposes. I hope that helps.Dontcha hate it when you ask a question and someone responds "Google it"?
1379375
This is a 20 micron filter, fuel injected usually recommends 10 micron. It wont filter out as much which in turn maybe could cause issues with your injectors. We can't advise you either way, just give you the information and let you decide.
613486
You can only burn at 2.4x. Amazon's advertising is not correct, its a shame.
182741
I don't know how small a micron is however I have it in my man cave and it does real well, you should also buy the carbon filter that goes on the outside of this filter. the carbon filters are usually 3 inches longer with 3 or 4 Velcro strips to hold it in place. the carbon filters do a great job and if you want better try putting 2 carbon filters on, and then you just wash the carbon filter. hope this helps.
1868881
I don't know if you can use that filter however I would say it is very important to use the SuperSterasyl Filters to achieve the 5 micron's (99.99999% pure)
448979
Newer diesels require filtering in the micron range. I would not recommend this filter for that.
810028
I don't know about micron ratings. If my mask is rated 3 microns, then I suspect it would not protect against 2.5 micron particles.
1316105
This is an 810, a 5 micron filter element. There may be an 801, perhaps in a different pore size.
1789168
the unit has air quality monitor, clean room mode, sensor for particle and dust. True HEPA filtration captures 99.97% of pollen, dust, pet dander, and smoke particles as small as 0.3 microns.*From the air that passes through the filter
670336
Berkey doesn't publish micron ratings as they're a little misleading. From their website, if a filter traps of 0.2 micron particles then it's acceptable - even if the other 10% lets in 1.0 micron particles - to call it a 0.2 micron filter. But if you read the test results on their website, their filters are capable of filtering 99.999% of viruses and 99.9999% of bacteria. That's better than almost any filter out there. In fact, you test the filter by adding a teaspoon of red food coloring to a gallon of water and running it through the filter. I can vouch for the fact that in mine, the water comes out crystal clear. Berkey doesn't publish micron ratings as they're a little misleading. From their website, if a filter traps of 0.2 micron particles then it's acceptable - even if the other 10% lets in 1.0 micron particles - to call it a 0.2 micron filter. But if you read the test results on their website, their filters are capable of filtering 99.999% of viruses and 99.9999% of bacteria. That's better than almost any filter out there. In fact, you test the filter by adding a teaspoon of red food coloring to a gallon of water and running it through the filter. I can vouch for the fact that in mine, the... » Read More Berkey doesn't publish micron ratings as they're a little misleading. From their website, if a filter traps of 0.2 micron particles then it's acceptable - even if the other 10% lets in 1.0 micron particles - to call it a 0.2 micron filter. But if you read the test results on their website, their filters are capable of filtering 99.999% of viruses and 99.9999% of bacteria. That's better than almost any filter out there. In fact, you test the filter by adding a teaspoon of red food coloring to a gallon of water and running it through the filter. I can vouch for the fact that in mine, the water comes out crystal clear. « Show Less