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The Advantages of Oneida Air Systems' HEPA-Grade Media Filters

The Advantages of Oneida Air Systems' HEPA-Grade Media Filters
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The Advantages of Oneida Air Systems' HEPA-Grade Media Filters

The filter media is the main component that makes up an air filter. Older style filter medias (including nanofiber, cellulose, blended, spunbound, etc.) only reach peak particle efficiency after the filter has been “seasoned” for a period of time to develop a thick layer of very fine dust, known as filter cake, over the media. There are a few problems with this principle.

First, there is a significant suction loss once the filter cake is sufficiently thick, meaning that there is no way to both have peak filtration and maintain an effective suction level with an older filter media type. Second, a normal wood-working environment will not generate the uniform layer of dust buildup used in manufacturer testing; recreating that layer can be difficult, wasteful, and inefficient. Finally, air filters require regular cleaning which removes the layer of filter cake. You’ll have to go through the buildup process all over again every time you clean the filter.

Oneida Air Systems' HEPA-Grade Media Cartridge Filters work at peak efficiency right out of the box and will return to that level of filtration after repeated cleanings. The filters are fully washable, are easy to clean, and have a balance of high filtration efficiency and low pressure drop. Our filters are manufactured with HEPA-Grade ePTFE (expanded polytetrafluoroethylene) media - a quality certified product. Here at Oneida Air Systems, your health and safety are paramount where our filters are concerned.

Initial Efficiency Tests

In order to compare Oneida Air Systems' HEPA-Grade Media Cartridge Filters to older media types, each filter was purchased on the open market by an accredited 3rd party lab and was tested with the same experimental setup and variables. Below you can see comparative results for each filter’s efficiency on an initial load (before a layer of filter cake could be established). In the time it takes older filters to build up a layer of filter cake, a large amount of fine dust particles are released back into the air.

Initial efficiency of Oneida Air Systems' HEPA-Grade Media Cartridge Filter
Initial efficiency of 80/20 blended, spunbond, and nanofiber filters
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Efficiency After Consecutive Loads

It can take numerous workloads for the dust collection system to capture enough dust to develop a layer of filter cake sufficient for healthy particle removal. In this test, an accredited third party lab ran five consecutive loadings of test dust through the Nanofiber Cartridge Filter (a total of 766 grams of dust) at 500 CFM and measured its filtration efficiency rate for each load. As seen in the graph, it took over four loads to reach a healthy particle removal rate; even then, the filter did not reach the same level of filtering efficiency that Oneida Air Systems' HEPA-Grade media filter had initially.
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Efficiency Before & After Cleaning

Filter cleanings are important when considering older styles of filter media. In this test, the initial particle removing efficiency of the Nanofiber Cartridge Filter was compared to its efficiency after a full cleaning. As seen in the graph, cleaning the filter lowered its particle removal efficiency rate down to nearly base levels. These results are indicative of how the filter would perform after routine cleaning.

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Health & Safety

Over time, these differences in performance can have a huge effect. Experts agree that good dust collection requires almost 100% efficiency to prevent the most damaging respirable particles from being inhaled. Particles with a diameter of 10 micrometers or less, referred to as being in the PM-10 range, can become lodged deep down inside the tissues of the lungs where it is very difficult for them to be expunged (see figure). Fine dust can also cause equipment failure and create workshop hazards.

Where airborne particulates settle when entering the lungs
Dust emissions over time for Oneida Air Systems HEPA-Grade media filter and nanofiber filter
amount of dust generated by Oneida filter and nanofiber filter shown in salt shakers

Imagine if 10 g/min of PM-10 dust went into both the Nanofiber Filter (with an Average Initial Efficiency of 92.46%) and the Oneida Air Systems HEPA-Grade Media Filter (with an Average Initial Efficiency of over 99%) for just 30 minutes. The Nanofiber filter would release 99.4% more particles than the Oneida Air Systems HEPA-Grade Media Filter. That’s 22.625g of dust from the Nanofiber Filter - enough to fill ¾ of a typical 1oz. salt shaker - coating the inside of your lungs.

Performance Over Time

In May of 2013, WOOD Magazine published a study analyzing the filtration efficiency of various dust collectors by popular brands. They "seasoned" all of the filters by sucking up dust generated from a drum sander repeatedly being used on a 12"x48" MDF sheet (in order to replicate long term use). A digital particulate meter was used to measure the number of airborne particles (larger than 1 micron in size) after each MDF sheet was passed through. As seen in the chart, Oneida Air Systems' dust collector outperformed the rest of the competition thanks to its patented cyclone design, high-quality American-made components, and HEPA-Grade Media Filter. Removing airborne particles in the PM-10 range allows you to work longer and safer in the shop without discomfort.

WOOD Magazine's graph of filtration efficiency over time
Comments
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Daniell G. Hoffman
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I would like to see more up to date data. I have your 5hp high vacuum system and a 3hp Dust Gorilla system of yours with older filters and would like to see the difference with HEPA filters.
Oneida Air Systems
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Though the WOOD Magazine article is dated back in 2013, much of the information in this article is very representative of our current filter specifications. We remain committed to using only the best quality components with our systems; The HEPA filter media and cartridge construction specifications have remained relatively unchanged since this article was first published. We can provide more recent 3rd party testing data for any of our filters (including those used with the 5HP High Vacuum and 3HP Dust Gorilla) if you contact our sales and service department directly.
jt
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I find this interesting but frankly everyone states that their system is best. Without seeing the actual product its just impossible for the average customer to figure out what all of this means.
Rick
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What does seeing a filter have to do with reading data?? Use your brain for two seconds.
Joe tria
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Well Rick, seeing a filter has nothing to do with reading data. I don’t see anywhere above where anyone mentions SEEING the filter. Is really mentioned. Perhaps you should get your brain working for two seconds before you disrespect someone who comments. I think it is almost impossible to rate these products because everyone used a different method of testing. So, use your brain in the future before you comment.
Jt
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Dude, my brain is quite active. I don’t understand your stupid comment but I am sure it is meaningless
Marvin L McConoughey
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I've had and used whole-shop equipment for many years. They are the best in terms of studying dust filtration and its practical methods and health jadvantages. They would benefit from stronger packaging for their large air filters.
Jewel Hasan
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Air scrubbers are such a vital technology for maintaining healthy indoor air quality, and I'm thrilled to see them getting the attention they deserve in this blog. The idea of using these machines to clean and purify the air we breathe is truly revolutionary. One of the standout points in this blog is the versatility of air scrubbers. They're not just for large-scale construction or remediation projects; they can also be incredibly useful in everyday situations. From home renovations to managing indoor air pollution in commercial spaces, air scrubbers can make a significant impact on the well-being of occupants. I was particularly intrigued by the mention of HEPA filters in air scrubbers. These filters are known for their remarkable ability to trap tiny particles and contaminants, making the air not only cleaner but also safer to breathe. It's reassuring to know that this technology is at the heart of air scrubbers, ensuring that they truly deliver on their promise. Moreover, the blog's emphasis on creating a negative pressure environment is vital. This approach effectively prevents contaminants from escaping into other areas, which is especially important in sensitive environments like hospitals or laboratories. It highlights how air scrubbers are not just about purifying the air but also about containing and controlling pollutants. I'd love to read more about the latest advancements in air scrubber technology and how they are being integrated into smart home and building systems. The ability to remotely monitor and control air scrubbers is not only convenient but also can help us stay on top of air quality in real time. In conclusion, this blog provides a comprehensive overview of air scrubbers and their importance in maintaining clean and safe indoor environments. It's a reminder that these machines play a crucial role in safeguarding our health and well-being, and I'm eager to explore more about the innovations in this field. Thank you for sharing this informative post! to see about air scrubber more visit my website https://hepaairscrubber.com/
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