Hepa Filter Particle Size. It is an acronym for high efficiency particulate air filter as officially defined by the u s. Hepa filters are even more efficient at capturing particles larger and smaller than the mpps.
Proton Pure Breathe The Freshest Healthiest Air Pure Products Protons Glassware from www.pinterest.com
Many media outlets have incorrectly stated that hepa. Particle size of gases. The filter s minimal resistance to airflow or pressure drop is usually specified around 300 pascals 0 044 psi at its nominal volumetric flow rate.
By definition a high efficiency particulate air hepa filter is at least 99 97 efficient at capturing particles 0 3 µm in size.
Particle size of gases. Thus hepa filters are no less than 99 97 efficient at capturing human generated viral particles associated with sars cov 2. 0 01 micron 10 nanometers and above. Hepa filters are even more efficient in removing particles that are smaller than 0 3 microns and larger than 0 3 microns.
