The 10 Most Unanswered Questions about

March 17, 2019

Miscellaneous

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Advantages Offered by HEPA Filters

With so many technology terms we hear today, “HEPA filter” seems one of those that have such staying power – and the reason is obvious. They’re the final barometer in terms of filters, considering how effective they are at their job, which is to get rid of 99.97% of air particles. Not all HEPA filters are the same, however, and this is why testing companies, such as Performance Assurance Systems are there for testing purposes.

If you want more info. about HEPA filters, let’s begin by knowing the meaning behind the acronym. HEPA means High-Efficiency Particulate Absorption, and fiberglass is the main material to make these filters. The filter basically traps a wide variety of allergens, contaminants and the like. It’s easy to surmise that this hugely benefits asthma and allergy sufferers, and just about all those who would like better quality indoor air.

The technology behind HEPA filters though isn’t exactly new. Fact is, the HEPA filter ever invented goes back to World War II era, and the intention was to prevent radioactive particles leaking out of laboratories. The next decade, it was produced commercially and has since evolved from being used in various industries, from medical to aerospace and more.

Though there are innumerable particles hanging in household air, there’s probably even more stuck on surfaces like upholstered furniture, countertops and the like. It is a must to make sure that these areas are clean, but eliminating the source altogether is still the best step take.

In medical scenarios, HEPA filters have shown their value as well by significantly minimizing the spread of bacteria, viruses and other particles in the air. The best rated HEPA units nowadays have efficiency ratings as high as of 99.995%, offering the strongest protection against diseases caused by airborne contaminants.

You will likley find “HEPA-like” filters nowadays which are much cheaper to buy, but they will never be real HEPAs nor as effective, trapping a mere 80% to 90% of airborne particles. To make sure you’ve bought a real HEPA filter, look at the serial number and test results on the label or manual. A good one should be able to remove 9.97% or more at .3 microns. Again, there are companies that actually test these filters so you know what you’re getting from them.

Because of their efficiency, HEPA filters can be found in an increasing number of places as technology further advances. In recognition of its value, makers of airplanes, cars and vacuum cleaners have also used the principle of HEPA filtration as part of their own development.