As we have seen earlier in Air Purifiers Filters, we will go through more details about HEPA Filter in this Article.
HEPAÂ filter media is made of micro glass fiber paper the benefits of hepa filters are a constant performance a large filter surface due to folded micro glass fiber paper low energy consumption
HEPA stands for High-Efficiency Particulate Arrester this filter traps dust (up to PM2.5), smoke, pet dander & Pollens.
HEPA filters are composed of a mat of randomly arranged fibers. The fibers are typically formed of fiberglass and possess diameters between 0.5 and 2.0 micrometers.
The life of HEPA filter is 2 to 5 years depending on the usage and environmental condition.
HEPA filters, as defined by the United States Department of Energy (DOE) standard adopted by most American industries, remove at least 99.97% of airborne particles 0.3 micrometers (µm) in diameter.
| HEPA class | retention (total) | retention (local) |
|---|---|---|
| E10 | > 85% | — |
| E11 | > 95% | — |
| E12 | > 99.5% | — |
| H13 | > 99.95% | > 99.75% |
| H14 | > 99.995% | > 99.975% |
| U15 | > 99.9995% | > 99.9975% |
| U16 | > 99.99995% | > 99.99975% |
| U17 | > 99.999995% | > 99.9999% |
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