Devola air purifiers use a true HEPA filter and an activated carbon filter to remove particulates and VOCs from the air.
HEPA stands for High Efficiency Particulate Air. A HEPA filter is a specific type of air filter that has been specifically manufactured to reach a set standard. This standard details that a HEPA filter must remove at least 99.7% of particles from the air down to at least 0.3 microns in size. To put that into perspective, the smallest things the human eye can see are around 70 microns in size. And those dust floaties that you might see in a beam of sunlight? These could be around 10 microns in size.