Is this filter a HEPA filter?

Blueair filters are less dense than traditional HEPA filters. HEPASilent‚Ñ¢ filters allow Blueair purifiers to be quieter and more energy efficient, while achieving the same filtration performance as a traditional HEPA filter. HEPASilent‚Ñ¢ is a combined electrostatic and mechanical filtration technology, unique to the brand.