High-Efficiency Particulate Air or sometimes High-Efficiency Particulate Arrestance, (HEPA) is an issuing standard for air filters that are certified, manufactured, tested and labeled according to the filter standards by HEPA. There are several categories of HEPA classification and the minimum category requires filters to capture 99.97 percent of 0.3 microns present in the air. Being the gold standard of air filtration, it often raises some FAQs about the HEPA filtration, no matter whether you need AC filters in San Antonio or San Jose! Read on to get some of the essential information about HEPA filters.
1. What makes HEPA filters so highly efficient?
HEPA filters use super fine fiber that helps to capture even the tiniest of impurities that can pass through other filters. Originally designed in 1940s and used to prevent airborne radioactive contaminants from spreading during the Manhattan Project. HEPA filters need to be tested and certified to meet the requirements of an HEPA filter and prove that it is efficient to remove 99.97 percent of particles of 0.3-micron diameter that pass through the filter.
2. Are HEPA Media Filters and HEPA filters the same?
No. A filter manufactured with HEPA filter media doesn’t imply that it meets HEPA efficiency requirements. A tiny leak in the media may compromise the efficiency of the filter and it may fall below HEPA standards. A filter meets HEPA filters only after it has been thoroughly tested following the industry standards to ensure the performance and efficiency of the filter.
3. Are HEPA filters apt for isolated wards in hospitals?
The highly infectious wards in hospitals demand better air purification controls and as per the current Center for Disease Control and Prevention (CDC) guidelines, HEPA filters make the cut. HEPA filters capture contaminants that are present in isolation rooms including pathogens and microbial spores.
4. Does the performance of HEPA filter lower with time?
No. Unlike the electrostatically charged air filters, the efficiency of HEPA filters is not affected as they become dirty. The efficiency of HEPA filters increases as they get dirty. While that surprises most people, it is true.
5. How often should HEPA filters be replaced?
The frequency of replacing air filters depends on factors such as the size of airborne condiments, the concentration level of airborne contaminants, the level of humidity in the area. No matter whether you are looking for commercial AC filters in San Antonio or for that matter in any part of the US, HEPA filters may or may not come with an indication system that notifies users when it’s time to replace the filter, depending on the model you buy.
So, those were some of the common questions that people have about HEPA filters. We hope we were able to put an end to at least a few of your queries about HEPA filters. If you wish to learn more or need professional consultation on HEPA filters, our experts will be happy to help.