Do you use HEPA filtration?

We don’t use HEPA filters because they don’t make the oxygen cleaner—only machines cleaner by reducing dust. Our units already have the dust filtration they need. Oxygen concentrators separate molecules far smaller than anything a HEPA filter can capture, so HEPA filtration does not affect oxygen quality.

Oxygen and nitrogen molecules are about 300 picometers, while HEPA filters only capture particles over 300,000 picometers—far too large to affect oxygen production.