This air purifier has two filters – a 4” deep carbon pre-filter and a 12” deep main filter.
- True HEPA (99.97%+ at 0.3 microns)
- Main filter has 3-30X more filter media - lasts longer and quieter
The main filter is a true HEPA filter (MERV 17) and is the same industrial filter that is trusted by hospitals. It has 154 sq feet of filter media and that is more than 3 times our closest competitor and up to 30 times what other air purifiers have. Most HEPA air purifiers have a thin filter and while marketed as HEPA they do not achieve HEPA performance. We have tested just about every filter that is out there and haven't found one that can meet this standard. This is important because they are not as effective in removing the smallest sized particles which are the one's that stay suspended in the air the longest and get breathed deep into your lungs. To remove these particulates an industrial grade filter is required, the more filter media the better.
Having more filter media also means the main filter will last longer (2.5+ years) and it creates less air resistance. By not having to work as hard the motor can spin at a slower, quieter rate.
These are the same filters used in Hospitals, Containment units, and Laboratories. Custom sized filters made by the only company in North America that makes its own HEPA media and made in the USA.