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Also unlike HEPA tests, MERV tests measure particulates of different sizes, from 0.3 micron (the most difficult to filter, and the size HEPA tests measure) up to 10 microns (relatively large and easy to filter)

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The pre-filter traps the larger particles and evenly distributes the air as it passes through to the ionizing section of the Unicell

To achieve this, air cleaning filtration devices such as HEPA filters, and ultra-low particulate air (ULPA) filters are installed on the cleanroom walls and ceilings

Remember, this list serves as a referencethe best device is ultimately the one that aligns with your personal preferences, lifestyle, and goals.