The technology of separator has surfaced in the market for about 70 over years. It can be considered as an older technology.
L-Lamella is an invention by Proair GmbH. Their research and development team invented the L-Lamella separator after testing out a few hundred different separators. One of their innovative changes that is able to trap the finest dust. Customers can simply clean the L-Lamella regularly. This is why Dolphin can still clean effectively and efficiently without and filter. With L-Lamella technology, there is no need for dust bag and filter.