As homes and office buildings are constructed to be airtight, the need
for filtration increases due to the lack of outside air. Filtered products
help recirculate and purify the air you breathe.
HEPA stands for High Efficiency Particulate Air. The most efficient
filters meet HEPA standards, removing 99.97% of particles with a
size of 0.3 microns that pass through the filter.
One micron is 100 times smaller than a human hair.
According to the U.S. Department of Homeland Security, a way
to combat bioterrorism is to “Consider a portable air purifier,
with a HEPA filter, to help remove contaminants from the room
where you are sheltering.”