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  1. AK It sounds like the "indoor allergens" you are...

    AK
    It sounds like the "indoor allergens" you are most concerned with are dust mites and mold. The other allergens on your list are outdoor allergens.

    Reducing humidity below 50% is an excellent...
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    Austin Air has been in business for about 20...

    Austin Air has been in business for about 20 years. They make high quality HEPA air purifiers that are both effective and reliable. I have had one running in my bedroom since 1997. It makes a big...
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    There seems to be somewhat of a misunderstanding...

    There seems to be somewhat of a misunderstanding on the resistance of thicker pleated filters versus thinner pleated filters. Given the same media (fabric) a thicker pleated filter will always have...
  4. Sorry for the delay in responding. I will try to...

    Sorry for the delay in responding. I will try to answer your question, but it has been a few years since I did some of these tests. The Lennox HC16 is a very efficient filter. The best part is...
  5. This article sums up my views on the GPS product....

    This article sums up my views on the GPS product.

    Alchemy, Indoor Air and the Black Box

    By Jim Rosenthal, 3/17/2006

    Be wary of excessive marketing claims for products to take care of...
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    rh You need to stay away from any filter that is...

    rh
    You need to stay away from any filter that is going to restrict your airflow. With a 14X18X1 filter opening my bet is that you have marginal or insufficient return air in your system the way...
  7. What is this? A cheap advertisement for a bad...

    What is this?

    A cheap advertisement for a bad product.

    Sickening!
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    DR For the average consumer the IQ Air is an...

    DR
    For the average consumer the IQ Air is an excellent product with very high efficiency and good air flow.

    Your comparison of the IQ Air to the Biological Controls M800 is like someone...
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    A We have also discussed the pros and cons of...

    A
    We have also discussed the pros and cons of the Bi-polar ionization on this site. This technology creates OH (hydroxyl radicals) in the occupied space and is potentially more damaging than the...
  10. Real Science vs. Fake Science: How Can You Tell Them Apart?

    This is an excellent article on real science vs. fake science and how to tell the difference when it comes to products. the emphasis is on health products but the basic points apply to many of the...
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    Using three Filtrete filters is a waste of your...

    Using three Filtrete filters is a waste of your money. Visible particles are over 10 microns in size. Any pleated filter will remove close to 100% of the particles of this size that reach the...
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    The only time your vacuum would be a dust creator...

    The only time your vacuum would be a dust creator is when you are vacuuming or for about 30 minutes thereafter.

    My guess is that the blown in insulation and the protrustions from ceiling fans...
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    In my experience the most common causes for...

    In my experience the most common causes for excessive dust are: 1. cellulose insulation and 2. protrusions in the ceiling for recessed lights, etc.. Do you have either?
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    SA66 I am not sure I understand your question. ...

    SA66
    I am not sure I understand your question. But here is some information that might be helpful.

    In the ASHRAE 52.2 Standard there are 7 acceptable flow rates at which tests can be run. They...
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    I agree with pm. After reading these so called...

    I agree with pm. After reading these so called "scientific reports" I see nothing that indicates that this technology is safe or effective for indoor environments. Once again, what we see are...
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    AMG Both the REME and the Guardian Air use the...

    AMG
    Both the REME and the Guardian Air use the same photohydroionization (PHI) technology. Do you really think the outcome would be different? The small reduction in particles from ionization is...
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    Picture of the experiment with PHI and terpene - particle count

    306341
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    The "testing data" on the website is from...

    The "testing data" on the website is from laboratory tests done in chambers the size of a microwave oven. You could achieve the same results by turning on the microwave. They do not apply to indoor...
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    AMG OK, so we are supposed to believe that the...

    AMG
    OK, so we are supposed to believe that the Air Knight (installed on the supply side) is going to charge particles in a house, make them stick together and be easier to pick up by the air filter...
  20. JJ I really don't know how the Nordic Pure...

    JJ
    I really don't know how the Nordic Pure filters compare with others without seeing their test results. I have not tested these filters myself. As far as the comparison with 3M filters it would...
  21. These filters are fairly restrictive to airflow. ...

    These filters are fairly restrictive to airflow. Obviously, they are not ok for your system.

    I would recommend going with a standard pleated filter and chalk this up to experience. But you have...
  22. Thread: UV Lights

    by breathe easy
    Replies
    66
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    37,946

    Well said, Ir. Not only is mixing of the air a...

    Well said, Ir. Not only is mixing of the air a problem but most particles will not stay in the air long enough to be exposed to the UV light for multiple passes. So only a relatively small...
  23. So, you have confirmed exactly what this thread...

    So, you have confirmed exactly what this thread is about - UV lights will destroy any materials made of hydrocarbons exposed to the UV lights. This is a major problem since buyers are not informed...
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    It is possible that this individual is sensitive...

    It is possible that this individual is sensitive to ozone. No harm in turning their ionizer off for a week and seeing what happens with the "experiment."

    It does not sound like your HVAC system...
  25. Thread: Allergies

    by breathe easy
    Replies
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    1,909

    TB I think you missed the point. I did not say...

    TB
    I think you missed the point. I did not say that ventilation and dehumidification are not part of comprehensive allergen avoidance. What I said was that they are not a cure all. Proper...
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