Sep 19 2011, 03:25 PM
you can find ozone generators from swimming pool suppliers. Ozone is also used to clean swimming pools.
I know UM Physics Lab had a product a few years ago using Plasma physics to generate Ozone. You might consider giving them a call.
QUOTE(SecretSuperStar @ Jun 3 2010, 04:23 PM)
Where to find portable Ozone Generator in Malaysia that generates high amount of ozone and have adapter for hose like in the pic below:--
and before someone tell me "ozone can cause lung disease, not good for health bla bla" .. I know how to handle ozone and its by-products . Thank you.
Hope to find one in Malaysia.
and before someone tell me "ozone can cause lung disease, not good for health bla bla" .. I know how to handle ozone and its by-products . Thank you.
Hope to find one in Malaysia.
Added on September 19, 2011, 3:39 pmHi,
I notice this explanation below on "TRUE" HEPA efficiency and I found it rather misleading.
I guess it is literally right, that the TRUE HEPA can only get more efficient; actually it might become 100% efficient and stop becoming a filter.
Another interpretation of efficiency is to couple the filtering capacity with the pressure needed to get air to flow through the filter.
It is more reasonable and natural interpretation as we commonly understand the word efficiency.
If the HEPA gets clogged up, more and more air pressure would be needed to push air through the filter (as the HEPA filter becoming more efficient!). Therefore the fan motor would have to work harder or if the motor is working at a constant rate, the air-flow would be slower. In any case, the AP would be working at reduced efficiency instead of increased efficiency as the explanation below suggests to the casual reader.
Also, I would suspect that "ALL" such filters tend to be "more efficient" as time goes by......
QUOTE(Onemorething @ May 8 2010, 09:09 AM)
Hello All, just to repeat an earlier post, if you are looking to do your research on the top Air Purifiers on the market today for home use, which are in the PREMIUM (TRUE) HEPA segment, I would suggest you visit the top researcher/reviewer in the USA. Just an observation, there are only two brands represented in SE Asia right now.
www.air-purifiers-america.com
Take the time to review all the videos. Take the time to calculate initial cost & ongoing costs before you make your decision.
In the meantime, please take the time to get familiar with what TRUE or ABSOLUTE HEPA means to you and your air filtration needs. We run accross so many brands of Air Purification who claim 99.97% efficiency but be warned, this does not mean they operate to this level.
What is a TRUE HEPA Filter?
The Letters in the word HEPA stand for High Efficiency Particulate Arrestance. (You may see others saying that the A means Arresting, Arrestor or Air but they all have the same basic meaning: "to capture") A "True" HEPA Filter is also known as an ABSOLUTE Filter because of it's efficiency!
The "True" HEPA filter was developed during World War II by the Atomic Energy Commission and it was designed to remove and capture radioactive dust particles from the air which might escape and present a health hazard to the researchers. The "True" HEPA filter was specifically designed to protect the Human Respiratory System. Even the CDC guidelines for the transmission of tuberculosis (TB) recommend that only HEPA filters with an efficiency of 99.97% tested at 0.3 microns particle size or smaller be used.
The "True" HEPA filter is recognized by OSHA / EPA as the ULTIMATE in cleansing the air and is a proven method.
The "True" HEPA filtration technology is currently the only type of air purification tool recommended by the U.S. Government’s Department of Homeland Security and FEMA.
"True" HEPA filters are regarded as the best form of air filtration. Hospitals, laboratories, even NASA spend many thousands and even millions of dollars to create contamination free environments called clean rooms to help eliminate foreign particles, infectious agents, heavy metal particles, and a variety of other undesirable contaminants.
For a filter to be called a "True" HEPA, it must retain and filter out all particles from the air that passes through it down to 0.3 microns in size at an efficiency rating of 99.97%.
A "True" HEPA Filters's efficiency DOES NOT decrease during it's life, it actually increases and its also known as an ABSOLUTE type filter media for particle capturing.
For a filter to be labeled "True" HEPA, it must be certified 99.97% efficient in capturing 0.3 micron (not 0.1 or 0.01 etc..) respirable-size-particles (RSP) according to the U.S. Military Standard MIL-STD-282, commonly known as the DOP test. The reason 0.3 micron is used and no other is because 0.3 micron is the size at which all mechanical filters are LEAST efficient in capturing. Other methods of testing do not give a true picture of efficiencies relative to respirable-size-particle (RSP) capture.
"True" HEPA filtration is recognized as one of the most efficient air filtration methods known and proven to remove airborne particles, down to the size of 0.3 microns, and is almost exclusively used in medical, laboratory, and commercial applications where totally clean air environments are required for human health and safety.
"True" HEPA filters are used for nuclear contamination, lead and asbestos abatement, surgical facilities, tuberculosis wards, clean rooms, computer rooms and other areas where clean and particle free air is essential.
Since 0.3 micron size particles are the most difficult size particles to remove from the air (not 0.1 or 0.01 or any other number) and they pass easily into the body's respiratory system, (RSP) they are specifically used in the testing and certifying of a "True" HEPA Filter.
(Please note: "HEPA-Type" filters are lower cost, not as efficient, and not an equivalent to a "TRUE" HEPA filter. "HEPA-Type" filters are simple low cost impersonators of a "TRUE" HEPA filter.)
This post has been edited by khf20: Sep 19 2011, 03:39 PMwww.air-purifiers-america.com
Take the time to review all the videos. Take the time to calculate initial cost & ongoing costs before you make your decision.
In the meantime, please take the time to get familiar with what TRUE or ABSOLUTE HEPA means to you and your air filtration needs. We run accross so many brands of Air Purification who claim 99.97% efficiency but be warned, this does not mean they operate to this level.
What is a TRUE HEPA Filter?
The Letters in the word HEPA stand for High Efficiency Particulate Arrestance. (You may see others saying that the A means Arresting, Arrestor or Air but they all have the same basic meaning: "to capture") A "True" HEPA Filter is also known as an ABSOLUTE Filter because of it's efficiency!
The "True" HEPA filter was developed during World War II by the Atomic Energy Commission and it was designed to remove and capture radioactive dust particles from the air which might escape and present a health hazard to the researchers. The "True" HEPA filter was specifically designed to protect the Human Respiratory System. Even the CDC guidelines for the transmission of tuberculosis (TB) recommend that only HEPA filters with an efficiency of 99.97% tested at 0.3 microns particle size or smaller be used.
The "True" HEPA filter is recognized by OSHA / EPA as the ULTIMATE in cleansing the air and is a proven method.
The "True" HEPA filtration technology is currently the only type of air purification tool recommended by the U.S. Government’s Department of Homeland Security and FEMA.
"True" HEPA filters are regarded as the best form of air filtration. Hospitals, laboratories, even NASA spend many thousands and even millions of dollars to create contamination free environments called clean rooms to help eliminate foreign particles, infectious agents, heavy metal particles, and a variety of other undesirable contaminants.
For a filter to be called a "True" HEPA, it must retain and filter out all particles from the air that passes through it down to 0.3 microns in size at an efficiency rating of 99.97%.
A "True" HEPA Filters's efficiency DOES NOT decrease during it's life, it actually increases and its also known as an ABSOLUTE type filter media for particle capturing.
For a filter to be labeled "True" HEPA, it must be certified 99.97% efficient in capturing 0.3 micron (not 0.1 or 0.01 etc..) respirable-size-particles (RSP) according to the U.S. Military Standard MIL-STD-282, commonly known as the DOP test. The reason 0.3 micron is used and no other is because 0.3 micron is the size at which all mechanical filters are LEAST efficient in capturing. Other methods of testing do not give a true picture of efficiencies relative to respirable-size-particle (RSP) capture.
"True" HEPA filtration is recognized as one of the most efficient air filtration methods known and proven to remove airborne particles, down to the size of 0.3 microns, and is almost exclusively used in medical, laboratory, and commercial applications where totally clean air environments are required for human health and safety.
"True" HEPA filters are used for nuclear contamination, lead and asbestos abatement, surgical facilities, tuberculosis wards, clean rooms, computer rooms and other areas where clean and particle free air is essential.
Since 0.3 micron size particles are the most difficult size particles to remove from the air (not 0.1 or 0.01 or any other number) and they pass easily into the body's respiratory system, (RSP) they are specifically used in the testing and certifying of a "True" HEPA Filter.
(Please note: "HEPA-Type" filters are lower cost, not as efficient, and not an equivalent to a "TRUE" HEPA filter. "HEPA-Type" filters are simple low cost impersonators of a "TRUE" HEPA filter.)
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