A lot of companies try to confuse you with big words: HEPA-type, HEPA-like, HEPA-grade, 99%-HEPA, patented nanotech, ionizes, neutralizes, destroys, vaporizes, etc.
(Pro Tip: this is all b.s. made up by some marketing guy named Bob.)
Certified HEPA is the only proven technology, and the only material we trust at Mila. It's the ONLY filtration technology guaranteed to remove 99.97% of airborne particles 0.3 micrometers (µm) in diameter, such as smoke, allergens, house dust, dust mites, pet dander, mold spores, viruses, bacteria, fungi, PM2.5, and PM10.