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What is True HEPA?
HEPA stands for "High-Efficiency Particulate Air" which means it's highly effective at trapping particles in the air. In order to be considered "True HEPA" the filter must be rigorously tested to prove it can capture up to 99.97% of particles as small as 0.3 microns. Microns are a scientific name for all of the most common air pollutants including dust, smoke, pollen, and more.