Review on JoyBros 12 Pack Replacement High Efficiency Compatible by Debbie Webster

I bought two boxes of these filters. First, the filters are not sealed around the perimeter of the pleated filter like the iRobot. This means that each filter has an airflow equivalent to a half-inch hole for dust to pass through. In the second case, the material is extremely coarse and does not have the thin layer required for a HEPA filter. It lets fine dust/allergens through directly. Their filter capacity approaches zero - they are not HEPA filters like those sold by iRobot. They are more expensive for some reason.