Nina Bauer, PhD, MBA, Merck KGaA, Darmstadt, Germany, gives an overview of the process and advantages of the ekko™ acoustic cell processing system, a platform technology for cell and gene therapy manufacturing. In contrast to traditional mechanical or filtration methods that rely on filters with fixed pore sizes and centrifugal forces, the ekko™ system is based on acoustic waves which allow to gently concentrate and wash cells. The ekko™ system is a flexible tool that can process very small volumes as well as large aggregates which can be used in multiple cell applications. This interview took place at Advanced Therapies Week 2022.