It has a true HEPA air filter inside, which filters out 99.97% of the gnarly particulates in your air. It can clean the air in a room up to 200 square feet, so it’s not meant to scrub your whole ...

Recent studies show that upgrading HVAC systems and using HEPA filters to improve air quality in classrooms provide health ...

So HEPA filters are actually even more effective at removing smaller particles (like viruses) and bigger ones (like pollen). “True HEPA,” “medical grade,” “H13,” and “H14” are ...

To filter gases, you need to choose a portable air cleaner with an activated carbon filter or other filter designed to remove gases. HEPA filters are generally ineffective against VOCs.

Filter maintenance: Like their bigger counterparts, portable purifiers need regular maintenance. The filters, especially HEPA or activated carbon ones, can get clogged up quickly and need ...