What is EN779?
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The EN779:2012 standard used today in Europe to characterize the filtration efficiency of the filters for the ventilation of buildings defines the filtration classes according to the average filtration efficiency of the particles with a diameter of 0.4 µm (see Table 1 below).
What is a HEPA filter used for?
It is an acronym for “high efficiency particulate air [filter]” (as officially defined by the U.S. Dept. of Energy). This type of air filter can theoretically remove at least 99.97% of dust, pollen, mold, bacteria, and any airborne particles with a size of 0.3 microns (µm).
What is H14 HEPA filter?
H13-H14 HEPA are within the highest tier of HEPA air filtration and are considered medical-grade. “A HEPA grade of H13 can remove 99.95% of all particles in the air measuring 0.2 microns in diameter, while a HEPA grade H14 removes 99.995%,” says Nagl.
What EN779 2012?
EN779:2012 is the new European Standard for air filters and will come into effect by the end of 2012. EN779:2012 only calls for Minimum Efficiency on filters of grades F7 to F9 and to clearly define this, filters previously classified as F5 and F6 are now changed to M5 and M6 in a Medium Filter Category.
What is F7 grade filter?
These high-efficiency multi-pocket Bag Filters F7 and F8 are designed to remove very fine dust particles from the air including soot, pollens, mould spores and bacteria. They are ideal for use in hotels, museums, art galleries, theatres, pharmaceutical and food manufacturing plants, computer rooms plus hospitals.
Can a HEPA filter stop viruses?
When used properly, air cleaners and HVAC filters can help reduce airborne contaminants including viruses in a building or small space. By itself, air cleaning or filtration is not enough to protect people from COVID-19.
Is MERV 16 too restrictive?
Filters within a MERV rating of 17-20 are almost never necessary in a residential home. A MERV rating of 13-16 is considered hospital level air quality, so it is unlikely your home needs any more than that.